Comments on: Ran on 94 octane (from 87) now surge of momentary power at start then stutter http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter Wed, 08 Feb 2012 16:54:19 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5817 admin Wed, 28 Jul 2010 04:09:14 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5817 Don't know for sure about higher octane being cleaner, but most of the oil <br /> companies claim that their higher octane fuels have a detergent of some kind <br /> and claim this will keep your engine cleaner. Don't know if there's any <br /> proof of this, but it probably doesn't hurt anything. <br /> <p>You may be noticing a bit more power if your timing is a bit off and the 87 <br /> octane was causing knocking. The knock sensor system in your engine would <br /> retard the timing a bit to stop the knocking, and this would rob a bit of <br /> power. The higher octane would help prevent the knocking so the ignition <br /> system could run at a more optimal timing curve, this would give you back <br /> the bit of power you were losing to the knocking. Look in your owners manual <br /> and see what octane fuel it recommends. If it say 87 is fine, then your <br /> shouldn't gain anything by using anything higher than that, assuming your <br /> engine is properly tuned. This could also account for the better mileage. If <br /> your constantly running at other than the optimal timing curve, your mileage <br /> will be down from what it should be. <br /> </p><p>Don't worry about treating your car to the higher octane, your car doesn't <br /> really know the difference and won't get "hooked" on the good stuff and then <br /> run bad on the 87. The startup hesitation is more likely caused by your car <br /> needing a tune-up. <br /> </p><p>Remember, a fuels octane rating has nothing to do with how much power it can <br /> produce. It's simply a rating of how well it resists pre-ignition, or <br /> knocking. A higher compression engine needs a higher octane fuel to keep it <br /> from detonation before it's supposed to. Another term for octane is <br /> "anti-knock rating". I think the oil companies started calling it octane <br /> because their marketing departments thought it would sell more. <br /> </p><p>Hope this helps <br /> -- <br /> Mr.Eddy <br /> '86 GTI <br /> '86 Golf Diesel (RIP) <br /> </p><p>"H2Only" <gsnie...@canspec.com> wrote in message <br /> <br />news:d3f7f191.0306300638.428fcb5e@posting.google.com... <br /> > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> <br /><news:N6KLa.521$eF3.99351@news20.bellglobal.com>... <br /> </p><p></p><p>- Hide quoted text -- Show quoted text -</p>> > Hey <br /> <p>> > 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>> > I filled up with some 94 Octane gas (because it was cheap... only 61.9 <br /> cents <br /> > > per litre of 87 octane, 74.9 for 94octane.... regular gas was this much <br /> a <br /> > > few months ago). Anyhow, I took it for a blast down the highway for an <br /> hour <br /> > > and a bit.... seemed to get great gas mileage for a change. Anyhow now <br /> when <br /> > > I go to start up in first gear the car wants to jump the gun a <br /> little.... it <br /> > > will start to take off, but then will start to stutter because I am not <br /> > > nearly giving it enough gas for what it wants to do (this is all still <br /> while <br /> > > the clutch isn't even all the way out)..... Should I have just kept <br /> putting <br /> > > crude old 87 Ocane in it, as per usual.... I like treating the car to 94 <br /> > > Octane now and then to clean it out on the highway (its a city car... it <br /> > > gets carbonized). This phenomenon only happens when I want to start off <br /> > > quickly off the line, which I wanted to do twice, the other 2-3  starts <br /> > > since I left the offramp were just normal acceleration attempts.... <br /> nothing <br /> > > out of the usual. <br /> </p><p>> By the sound of it, 94 octane is the next best thing to a shot of <br /> > nitrous . . . <br /> </p><p>> One of the myths about hi-test is that it is somehow 'cleaner' than <br /> > regular.  Hi-test is not going to magically un-carbon valves and clean <br /> > injectors any better than regular can.  You might notice a slight <br /> > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25% <br /> > higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> > enough to detect a performance difference in most of the engines that <br /> > were designed for regular.  Sorry. <br /> </p><p>> H2Only <br /> </p><p>> btw, one of my cars just passed emissions with old, regular grade gas <br /> > . . . I didn't do a thing to prepare it. <br /> <br />--- <br /> Outgoing mail is certified Virus Free. <br /> Checked by AVG anti-virus system (http://www.grisoft.com). <br /> Version: 6.0.493 / Virus Database: 292 - Release Date: 6/25/03 <br /> </p> Don’t know for sure about higher octane being cleaner, but most of the oil
companies claim that their higher octane fuels have a detergent of some kind
and claim this will keep your engine cleaner. Don’t know if there’s any
proof of this, but it probably doesn’t hurt anything.

You may be noticing a bit more power if your timing is a bit off and the 87
octane was causing knocking. The knock sensor system in your engine would
retard the timing a bit to stop the knocking, and this would rob a bit of
power. The higher octane would help prevent the knocking so the ignition
system could run at a more optimal timing curve, this would give you back
the bit of power you were losing to the knocking. Look in your owners manual
and see what octane fuel it recommends. If it say 87 is fine, then your
shouldn’t gain anything by using anything higher than that, assuming your
engine is properly tuned. This could also account for the better mileage. If
your constantly running at other than the optimal timing curve, your mileage
will be down from what it should be.

Don’t worry about treating your car to the higher octane, your car doesn’t
really know the difference and won’t get "hooked" on the good stuff and then
run bad on the 87. The startup hesitation is more likely caused by your car
needing a tune-up.

Remember, a fuels octane rating has nothing to do with how much power it can
produce. It’s simply a rating of how well it resists pre-ignition, or
knocking. A higher compression engine needs a higher octane fuel to keep it
from detonation before it’s supposed to. Another term for octane is
"anti-knock rating". I think the oil companies started calling it octane
because their marketing departments thought it would sell more.

Hope this helps
—
Mr.Eddy
’86 GTI
’86 Golf Diesel (RIP)

"H2Only" <gsnie…@canspec.com> wrote in message

news:d3f7f191.0306300638.428fcb5e@posting.google.com…
> "Rob Guenther" <robguent…@sympatico.ca> wrote in message

<news:N6KLa.521$eF3.99351@news20.bellglobal.com>…

- Hide quoted text — Show quoted text -

> > Hey

> > 1991 Golf GL 1.8L gasoline engine (100 Hp)

> > I filled up with some 94 Octane gas (because it was cheap… only 61.9
cents
> > per litre of 87 octane, 74.9 for 94octane…. regular gas was this much
a
> > few months ago). Anyhow, I took it for a blast down the highway for an
hour
> > and a bit…. seemed to get great gas mileage for a change. Anyhow now
when
> > I go to start up in first gear the car wants to jump the gun a
little…. it
> > will start to take off, but then will start to stutter because I am not
> > nearly giving it enough gas for what it wants to do (this is all still
while
> > the clutch isn’t even all the way out)….. Should I have just kept
putting
> > crude old 87 Ocane in it, as per usual…. I like treating the car to 94
> > Octane now and then to clean it out on the highway (its a city car… it
> > gets carbonized). This phenomenon only happens when I want to start off
> > quickly off the line, which I wanted to do twice, the other 2-3  starts
> > since I left the offramp were just normal acceleration attempts….
nothing
> > out of the usual.

> By the sound of it, 94 octane is the next best thing to a shot of
> nitrous . . .

> One of the myths about hi-test is that it is somehow ‘cleaner’ than
> regular.  Hi-test is not going to magically un-carbon valves and clean
> injectors any better than regular can.  You might notice a slight
> improvement in MPG (maybe 1-2), but nowhere near enough to justify 25%
> higher cost.  And I doubt that most folks’ butt-dynos are sensitive
> enough to detect a performance difference in most of the engines that
> were designed for regular.  Sorry.

> H2Only

> btw, one of my cars just passed emissions with old, regular grade gas
> . . . I didn’t do a thing to prepare it.

—
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.493 / Virus Database: 292 – Release Date: 6/25/03

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5816 admin Wed, 28 Jul 2010 04:09:13 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5816 I don't know if this is relevant, I have a V5 Golf. I have to use Shell <br /> Optimax (98 octane). I was advised to use this since I had a lot of knocking <br /> noise coming from the engine. This seems to cure things and does give <br /> slightly <br /> better consumption. I have been told by a friend that races here that the <br /> petrol in UK is really bad quality and so the higher octane fuel seems to be <br /> better for a larger engine. <br /> <p>Regards, <br /> </p><p>Babu. <br /> </p><p>===== Original Message from "Peter Cressman" <cressm...@sympatico.ca> at <br /> 01/07/2003 04:09 <br /> </p><p></p><p>- Hide quoted text -- Show quoted text -</p>>My Jetta ('90 Carat) tends to rumble ***a little*** when I floor it....me <br /> >thinks that that is due to it being an automatic transmission...regardless, <br /> >there is a noticeable difference on Premium fuel. I typically use Petro <br /> >Canada fuel, as Esso fuel tends to have a very high water content, and the <br /> >car runs poorly on Esso anyway... <br /> <p>>- Peter <br /> </p><p>>"Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> >news:7j6Ma.4244$Ec2.294304@news20.bellglobal.com... <br /> >> Thing is, I don't know what knocking actually sounds like. But the engine <br /> >> seems to sound a little different under hard acceleration with premium. <br /> >With <br /> >> regular at full throttle its like you can hear the individual cylinders <br /> >> fire... sounds really powerfully, with premium this quiets down and there <br /> >is <br /> >> more acceleration once as you get higher in speed... at least IMO. BTW it <br /> >> could be that the 94 octane was a "super clean" type of gas... maybe less <br /> >> sulphur? <br /> >> "Peter Cressman" <cressm...@sympatico.ca> wrote in message <br /> >> news:oq5Ma.2304$eF3.278628@news20.bellglobal.com... <br /> >> > I know what you mean. <br /> </p><p>>> > My Jetta flew on Premium fuel...it makes some sortof difference... <br /> </p><p>>> > - Peter <br /> </p><p>>> > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> >> > news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com... <br /> >> > > I know all the stuff about high octane doing nothing.... but I swear I <br /> >> can <br /> >> > > feel something. Perhaps my car shouldn't be run on low octane fuel <br /> >> > > anymore... who knows. Seems odd that there is different start off <br /> >> > > performance when I changed gasolines tho. <br /> >> > > "H2Only" <gsnie...@canspec.com> wrote in message <br /> >> > > news:d3f7f191.0306300638.428fcb5e@posting.google.com... <br /> >> > > > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> >> > > <news:N6KLa.521$eF3.99351@news20.bellglobal.com>... <br /> >> > > > > Hey <br /> </p><p>>> > > > > 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>>> > > > > I filled up with some 94 Octane gas (because it was cheap... only <br /> >> 61.9 <br /> >> > > cents <br /> >> > > > > per litre of 87 octane, 74.9 for 94octane.... regular gas was this <br /> >> > much <br /> >> > > a <br /> >> > > > > few months ago). Anyhow, I took it for a blast down the highway <br /> >for <br /> >> an <br /> >> > > hour <br /> >> > > > > and a bit.... seemed to get great gas mileage for a change. Anyhow <br /> >> now <br /> >> > > when <br /> >> > > > > I go to start up in first gear the car wants to jump the gun a <br /> >> > > little.... it <br /> >> > > > > will start to take off, but then will start to stutter because I <br /> >am <br /> >> > not <br /> >> > > > > nearly giving it enough gas for what it wants to do (this is all <br /> >> still <br /> >> > > while <br /> >> > > > > the clutch isn't even all the way out)..... Should I have just <br /> >kept <br /> >> > > putting <br /> >> > > > > crude old 87 Ocane in it, as per usual.... I like treating the car <br /> >> to <br /> >> > 94 <br /> >> > > > > Octane now and then to clean it out on the highway (its a city <br /> >> car... <br /> >> > it <br /> >> > > > > gets carbonized). This phenomenon only happens when I want to <br /> >start <br /> >> > off <br /> >> > > > > quickly off the line, which I wanted to do twice, the other 2-3 <br /> >> > starts <br /> >> > > > > since I left the offramp were just normal acceleration <br /> >attempts.... <br /> >> > > nothing <br /> >> > > > > out of the usual. <br /> </p><p>>> > > > By the sound of it, 94 octane is the next best thing to a shot of <br /> >> > > > nitrous . . . <br /> </p><p>>> > > > One of the myths about hi-test is that it is somehow 'cleaner' than <br /> >> > > > regular.  Hi-test is not going to magically un-carbon valves and <br /> >clean <br /> >> > > > injectors any better than regular can.  You might notice a slight <br /> >> > > > improvement in MPG (maybe 1-2), but nowhere near enough to justify <br /> >25% <br /> >> > > > higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> >> > > > enough to detect a performance difference in most of the engines <br /> >that <br /> >> > > > were designed for regular.  Sorry. <br /> </p><p>>> > > > H2Only <br /> </p><p>>> > > > btw, one of my cars just passed emissions with old, regular grade <br /> >gas <br /> >> > > > . . . I didn't do a thing to prepare it. <br /> <br />Update Distribution <br /> Tel: +44 (0)20 8993 1010 Fax: +44 (0)20 8993 1018 <br /> E-mail: b...@updatedistribution.com <br /> </p><p>This e-mail and the information it contains are confidential and may be <br /> privileged. <br /> If you have received this e-mail in error please notify us immediately. <br /> You should not copy it for any purpose, or disclose its content to any other <br /> person. <br /> </p> I don’t know if this is relevant, I have a V5 Golf. I have to use Shell
Optimax (98 octane). I was advised to use this since I had a lot of knocking
noise coming from the engine. This seems to cure things and does give
slightly
better consumption. I have been told by a friend that races here that the
petrol in UK is really bad quality and so the higher octane fuel seems to be
better for a larger engine.

Regards,

Babu.

===== Original Message from "Peter Cressman" <cressm…@sympatico.ca> at
01/07/2003 04:09

- Hide quoted text — Show quoted text -

>My Jetta (’90 Carat) tends to rumble ***a little*** when I floor it….me
>thinks that that is due to it being an automatic transmission…regardless,
>there is a noticeable difference on Premium fuel. I typically use Petro
>Canada fuel, as Esso fuel tends to have a very high water content, and the
>car runs poorly on Esso anyway…

>- Peter

>"Rob Guenther" <robguent…@sympatico.ca> wrote in message
>news:7j6Ma.4244$Ec2.294304@news20.bellglobal.com…
>> Thing is, I don’t know what knocking actually sounds like. But the engine
>> seems to sound a little different under hard acceleration with premium.
>With
>> regular at full throttle its like you can hear the individual cylinders
>> fire… sounds really powerfully, with premium this quiets down and there
>is
>> more acceleration once as you get higher in speed… at least IMO. BTW it
>> could be that the 94 octane was a "super clean" type of gas… maybe less
>> sulphur?
>> "Peter Cressman" <cressm…@sympatico.ca> wrote in message
>> news:oq5Ma.2304$eF3.278628@news20.bellglobal.com…
>> > I know what you mean.

>> > My Jetta flew on Premium fuel…it makes some sortof difference…

>> > – Peter

>> > "Rob Guenther" <robguent…@sympatico.ca> wrote in message
>> > news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com…
>> > > I know all the stuff about high octane doing nothing…. but I swear I
>> can
>> > > feel something. Perhaps my car shouldn’t be run on low octane fuel
>> > > anymore… who knows. Seems odd that there is different start off
>> > > performance when I changed gasolines tho.
>> > > "H2Only" <gsnie…@canspec.com> wrote in message
>> > > news:d3f7f191.0306300638.428fcb5e@posting.google.com…
>> > > > "Rob Guenther" <robguent…@sympatico.ca> wrote in message
>> > > <news:N6KLa.521$eF3.99351@news20.bellglobal.com>…
>> > > > > Hey

>> > > > > 1991 Golf GL 1.8L gasoline engine (100 Hp)

>> > > > > I filled up with some 94 Octane gas (because it was cheap… only
>> 61.9
>> > > cents
>> > > > > per litre of 87 octane, 74.9 for 94octane…. regular gas was this
>> > much
>> > > a
>> > > > > few months ago). Anyhow, I took it for a blast down the highway
>for
>> an
>> > > hour
>> > > > > and a bit…. seemed to get great gas mileage for a change. Anyhow
>> now
>> > > when
>> > > > > I go to start up in first gear the car wants to jump the gun a
>> > > little…. it
>> > > > > will start to take off, but then will start to stutter because I
>am
>> > not
>> > > > > nearly giving it enough gas for what it wants to do (this is all
>> still
>> > > while
>> > > > > the clutch isn’t even all the way out)….. Should I have just
>kept
>> > > putting
>> > > > > crude old 87 Ocane in it, as per usual…. I like treating the car
>> to
>> > 94
>> > > > > Octane now and then to clean it out on the highway (its a city
>> car…
>> > it
>> > > > > gets carbonized). This phenomenon only happens when I want to
>start
>> > off
>> > > > > quickly off the line, which I wanted to do twice, the other 2-3
>> > starts
>> > > > > since I left the offramp were just normal acceleration
>attempts….
>> > > nothing
>> > > > > out of the usual.

>> > > > By the sound of it, 94 octane is the next best thing to a shot of
>> > > > nitrous . . .

>> > > > One of the myths about hi-test is that it is somehow ‘cleaner’ than
>> > > > regular.  Hi-test is not going to magically un-carbon valves and
>clean
>> > > > injectors any better than regular can.  You might notice a slight
>> > > > improvement in MPG (maybe 1-2), but nowhere near enough to justify
>25%
>> > > > higher cost.  And I doubt that most folks’ butt-dynos are sensitive
>> > > > enough to detect a performance difference in most of the engines
>that
>> > > > were designed for regular.  Sorry.

>> > > > H2Only

>> > > > btw, one of my cars just passed emissions with old, regular grade
>gas
>> > > > . . . I didn’t do a thing to prepare it.

Update Distribution
Tel: +44 (0)20 8993 1010 Fax: +44 (0)20 8993 1018
E-mail: b…@updatedistribution.com

This e-mail and the information it contains are confidential and may be
privileged.
If you have received this e-mail in error please notify us immediately.
You should not copy it for any purpose, or disclose its content to any other
person.

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5814 admin Wed, 28 Jul 2010 04:09:12 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5814 Thing is, I don't know what knocking actually sounds like. But the engine <br /> seems to sound a little different under hard acceleration with premium. With <br /> regular at full throttle its like you can hear the individual cylinders <br /> fire... sounds really powerfully, with premium this quiets down and there is <br /> more acceleration once as you get higher in speed... at least IMO. BTW it <br /> could be that the 94 octane was a "super clean" type of gas... maybe less <br /> sulphur? <br /> "Peter Cressman" <cressm...@sympatico.ca> wrote in message <br /> <br />news:oq5Ma.2304$eF3.278628@news20.bellglobal.com... <br /> <p>- Hide quoted text -- Show quoted text -</p>> I know what you mean. <br /> <p>> My Jetta flew on Premium fuel...it makes some sortof difference... <br /> </p><p>> - Peter <br /> </p><p>> "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> > news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com... <br /> > > I know all the stuff about high octane doing nothing.... but I swear I <br /> can <br /> > > feel something. Perhaps my car shouldn't be run on low octane fuel <br /> > > anymore... who knows. Seems odd that there is different start off <br /> > > performance when I changed gasolines tho. <br /> > > "H2Only" <gsnie...@canspec.com> wrote in message <br /> > > news:d3f7f191.0306300638.428fcb5e@posting.google.com... <br /> > > > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> > > <news:N6KLa.521$eF3.99351@news20.bellglobal.com>... <br /> > > > > Hey <br /> </p><p>> > > > 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>> > > > I filled up with some 94 Octane gas (because it was cheap... only <br /> 61.9 <br /> > > cents <br /> > > > > per litre of 87 octane, 74.9 for 94octane.... regular gas was this <br /> > much <br /> > > a <br /> > > > > few months ago). Anyhow, I took it for a blast down the highway for <br /> an <br /> > > hour <br /> > > > > and a bit.... seemed to get great gas mileage for a change. Anyhow <br /> now <br /> > > when <br /> > > > > I go to start up in first gear the car wants to jump the gun a <br /> > > little.... it <br /> > > > > will start to take off, but then will start to stutter because I am <br /> > not <br /> > > > > nearly giving it enough gas for what it wants to do (this is all <br /> still <br /> > > while <br /> > > > > the clutch isn't even all the way out)..... Should I have just kept <br /> > > putting <br /> > > > > crude old 87 Ocane in it, as per usual.... I like treating the car <br /> to <br /> > 94 <br /> > > > > Octane now and then to clean it out on the highway (its a city <br /> car... <br /> > it <br /> > > > > gets carbonized). This phenomenon only happens when I want to start <br /> > off <br /> > > > > quickly off the line, which I wanted to do twice, the other 2-3 <br /> > starts <br /> > > > > since I left the offramp were just normal acceleration attempts.... <br /> > > nothing <br /> > > > > out of the usual. <br /> </p><p>> > > By the sound of it, 94 octane is the next best thing to a shot of <br /> > > > nitrous . . . <br /> </p><p>> > > One of the myths about hi-test is that it is somehow 'cleaner' than <br /> > > > regular.  Hi-test is not going to magically un-carbon valves and clean <br /> > > > injectors any better than regular can.  You might notice a slight <br /> > > > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25% <br /> > > > higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> > > > enough to detect a performance difference in most of the engines that <br /> > > > were designed for regular.  Sorry. <br /> </p><p>> > > H2Only <br /> </p><p>> > > btw, one of my cars just passed emissions with old, regular grade gas <br /> > > > . . . I didn't do a thing to prepare it. <br /> <br /> </p> Thing is, I don’t know what knocking actually sounds like. But the engine
seems to sound a little different under hard acceleration with premium. With
regular at full throttle its like you can hear the individual cylinders
fire… sounds really powerfully, with premium this quiets down and there is
more acceleration once as you get higher in speed… at least IMO. BTW it
could be that the 94 octane was a "super clean" type of gas… maybe less
sulphur?
"Peter Cressman" <cressm…@sympatico.ca> wrote in message

news:oq5Ma.2304$eF3.278628@news20.bellglobal.com…

- Hide quoted text — Show quoted text -

> I know what you mean.

> My Jetta flew on Premium fuel…it makes some sortof difference…

> – Peter

> "Rob Guenther" <robguent…@sympatico.ca> wrote in message
> news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com…
> > I know all the stuff about high octane doing nothing…. but I swear I
can
> > feel something. Perhaps my car shouldn’t be run on low octane fuel
> > anymore… who knows. Seems odd that there is different start off
> > performance when I changed gasolines tho.
> > "H2Only" <gsnie…@canspec.com> wrote in message
> > news:d3f7f191.0306300638.428fcb5e@posting.google.com…
> > > "Rob Guenther" <robguent…@sympatico.ca> wrote in message
> > <news:N6KLa.521$eF3.99351@news20.bellglobal.com>…
> > > > Hey

> > > > 1991 Golf GL 1.8L gasoline engine (100 Hp)

> > > > I filled up with some 94 Octane gas (because it was cheap… only
61.9
> > cents
> > > > per litre of 87 octane, 74.9 for 94octane…. regular gas was this
> much
> > a
> > > > few months ago). Anyhow, I took it for a blast down the highway for
an
> > hour
> > > > and a bit…. seemed to get great gas mileage for a change. Anyhow
now
> > when
> > > > I go to start up in first gear the car wants to jump the gun a
> > little…. it
> > > > will start to take off, but then will start to stutter because I am
> not
> > > > nearly giving it enough gas for what it wants to do (this is all
still
> > while
> > > > the clutch isn’t even all the way out)….. Should I have just kept
> > putting
> > > > crude old 87 Ocane in it, as per usual…. I like treating the car
to
> 94
> > > > Octane now and then to clean it out on the highway (its a city
car…
> it
> > > > gets carbonized). This phenomenon only happens when I want to start
> off
> > > > quickly off the line, which I wanted to do twice, the other 2-3
> starts
> > > > since I left the offramp were just normal acceleration attempts….
> > nothing
> > > > out of the usual.

> > > By the sound of it, 94 octane is the next best thing to a shot of
> > > nitrous . . .

> > > One of the myths about hi-test is that it is somehow ‘cleaner’ than
> > > regular.  Hi-test is not going to magically un-carbon valves and clean
> > > injectors any better than regular can.  You might notice a slight
> > > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25%
> > > higher cost.  And I doubt that most folks’ butt-dynos are sensitive
> > > enough to detect a performance difference in most of the engines that
> > > were designed for regular.  Sorry.

> > > H2Only

> > > btw, one of my cars just passed emissions with old, regular grade gas
> > > . . . I didn’t do a thing to prepare it.

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5815 admin Wed, 28 Jul 2010 04:09:12 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5815 My Jetta ('90 Carat) tends to rumble ***a little*** when I floor it....me <br /> thinks that that is due to it being an automatic transmission...regardless, <br /> there is a noticeable difference on Premium fuel. I typically use Petro <br /> Canada fuel, as Esso fuel tends to have a very high water content, and the <br /> car runs poorly on Esso anyway... <br /> <p>- Peter <br /> </p><p>"Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> <br />news:7j6Ma.4244$Ec2.294304@news20.bellglobal.com... <br /> </p><p>- Hide quoted text -- Show quoted text -</p>> Thing is, I don't know what knocking actually sounds like. But the engine <br /> > seems to sound a little different under hard acceleration with premium. <br /> With <br /> > regular at full throttle its like you can hear the individual cylinders <br /> > fire... sounds really powerfully, with premium this quiets down and there <br /> is <br /> > more acceleration once as you get higher in speed... at least IMO. BTW it <br /> > could be that the 94 octane was a "super clean" type of gas... maybe less <br /> > sulphur? <br /> > "Peter Cressman" <cressm...@sympatico.ca> wrote in message <br /> > news:oq5Ma.2304$eF3.278628@news20.bellglobal.com... <br /> > > I know what you mean. <br /> <p>> > My Jetta flew on Premium fuel...it makes some sortof difference... <br /> </p><p>> > - Peter <br /> </p><p>> > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> > > news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com... <br /> > > > I know all the stuff about high octane doing nothing.... but I swear I <br /> > can <br /> > > > feel something. Perhaps my car shouldn't be run on low octane fuel <br /> > > > anymore... who knows. Seems odd that there is different start off <br /> > > > performance when I changed gasolines tho. <br /> > > > "H2Only" <gsnie...@canspec.com> wrote in message <br /> > > > news:d3f7f191.0306300638.428fcb5e@posting.google.com... <br /> > > > > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> > > > <news:N6KLa.521$eF3.99351@news20.bellglobal.com>... <br /> > > > > > Hey <br /> </p><p>> > > > > 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>> > > > > I filled up with some 94 Octane gas (because it was cheap... only <br /> > 61.9 <br /> > > > cents <br /> > > > > > per litre of 87 octane, 74.9 for 94octane.... regular gas was this <br /> > > much <br /> > > > a <br /> > > > > > few months ago). Anyhow, I took it for a blast down the highway <br /> for <br /> > an <br /> > > > hour <br /> > > > > > and a bit.... seemed to get great gas mileage for a change. Anyhow <br /> > now <br /> > > > when <br /> > > > > > I go to start up in first gear the car wants to jump the gun a <br /> > > > little.... it <br /> > > > > > will start to take off, but then will start to stutter because I <br /> am <br /> > > not <br /> > > > > > nearly giving it enough gas for what it wants to do (this is all <br /> > still <br /> > > > while <br /> > > > > > the clutch isn't even all the way out)..... Should I have just <br /> kept <br /> > > > putting <br /> > > > > > crude old 87 Ocane in it, as per usual.... I like treating the car <br /> > to <br /> > > 94 <br /> > > > > > Octane now and then to clean it out on the highway (its a city <br /> > car... <br /> > > it <br /> > > > > > gets carbonized). This phenomenon only happens when I want to <br /> start <br /> > > off <br /> > > > > > quickly off the line, which I wanted to do twice, the other 2-3 <br /> > > starts <br /> > > > > > since I left the offramp were just normal acceleration <br /> attempts.... <br /> > > > nothing <br /> > > > > > out of the usual. <br /> </p><p>> > > > By the sound of it, 94 octane is the next best thing to a shot of <br /> > > > > nitrous . . . <br /> </p><p>> > > > One of the myths about hi-test is that it is somehow 'cleaner' than <br /> > > > > regular.  Hi-test is not going to magically un-carbon valves and <br /> clean <br /> > > > > injectors any better than regular can.  You might notice a slight <br /> > > > > improvement in MPG (maybe 1-2), but nowhere near enough to justify <br /> 25% <br /> > > > > higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> > > > > enough to detect a performance difference in most of the engines <br /> that <br /> > > > > were designed for regular.  Sorry. <br /> </p><p>> > > > H2Only <br /> </p><p>> > > > btw, one of my cars just passed emissions with old, regular grade <br /> gas <br /> > > > > . . . I didn't do a thing to prepare it. <br /> <br /> </p> My Jetta (’90 Carat) tends to rumble ***a little*** when I floor it….me
thinks that that is due to it being an automatic transmission…regardless,
there is a noticeable difference on Premium fuel. I typically use Petro
Canada fuel, as Esso fuel tends to have a very high water content, and the
car runs poorly on Esso anyway…

- Peter

"Rob Guenther" <robguent…@sympatico.ca> wrote in message

news:7j6Ma.4244$Ec2.294304@news20.bellglobal.com…

- Hide quoted text — Show quoted text -

> Thing is, I don’t know what knocking actually sounds like. But the engine
> seems to sound a little different under hard acceleration with premium.
With
> regular at full throttle its like you can hear the individual cylinders
> fire… sounds really powerfully, with premium this quiets down and there
is
> more acceleration once as you get higher in speed… at least IMO. BTW it
> could be that the 94 octane was a "super clean" type of gas… maybe less
> sulphur?
> "Peter Cressman" <cressm…@sympatico.ca> wrote in message
> news:oq5Ma.2304$eF3.278628@news20.bellglobal.com…
> > I know what you mean.

> > My Jetta flew on Premium fuel…it makes some sortof difference…

> > – Peter

> > "Rob Guenther" <robguent…@sympatico.ca> wrote in message
> > news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com…
> > > I know all the stuff about high octane doing nothing…. but I swear I
> can
> > > feel something. Perhaps my car shouldn’t be run on low octane fuel
> > > anymore… who knows. Seems odd that there is different start off
> > > performance when I changed gasolines tho.
> > > "H2Only" <gsnie…@canspec.com> wrote in message
> > > news:d3f7f191.0306300638.428fcb5e@posting.google.com…
> > > > "Rob Guenther" <robguent…@sympatico.ca> wrote in message
> > > <news:N6KLa.521$eF3.99351@news20.bellglobal.com>…
> > > > > Hey

> > > > > 1991 Golf GL 1.8L gasoline engine (100 Hp)

> > > > > I filled up with some 94 Octane gas (because it was cheap… only
> 61.9
> > > cents
> > > > > per litre of 87 octane, 74.9 for 94octane…. regular gas was this
> > much
> > > a
> > > > > few months ago). Anyhow, I took it for a blast down the highway
for
> an
> > > hour
> > > > > and a bit…. seemed to get great gas mileage for a change. Anyhow
> now
> > > when
> > > > > I go to start up in first gear the car wants to jump the gun a
> > > little…. it
> > > > > will start to take off, but then will start to stutter because I
am
> > not
> > > > > nearly giving it enough gas for what it wants to do (this is all
> still
> > > while
> > > > > the clutch isn’t even all the way out)….. Should I have just
kept
> > > putting
> > > > > crude old 87 Ocane in it, as per usual…. I like treating the car
> to
> > 94
> > > > > Octane now and then to clean it out on the highway (its a city
> car…
> > it
> > > > > gets carbonized). This phenomenon only happens when I want to
start
> > off
> > > > > quickly off the line, which I wanted to do twice, the other 2-3
> > starts
> > > > > since I left the offramp were just normal acceleration
attempts….
> > > nothing
> > > > > out of the usual.

> > > > By the sound of it, 94 octane is the next best thing to a shot of
> > > > nitrous . . .

> > > > One of the myths about hi-test is that it is somehow ‘cleaner’ than
> > > > regular.  Hi-test is not going to magically un-carbon valves and
clean
> > > > injectors any better than regular can.  You might notice a slight
> > > > improvement in MPG (maybe 1-2), but nowhere near enough to justify
25%
> > > > higher cost.  And I doubt that most folks’ butt-dynos are sensitive
> > > > enough to detect a performance difference in most of the engines
that
> > > > were designed for regular.  Sorry.

> > > > H2Only

> > > > btw, one of my cars just passed emissions with old, regular grade
gas
> > > > . . . I didn’t do a thing to prepare it.

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5813 admin Wed, 28 Jul 2010 04:09:11 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5813 I know what you mean. <br /> <p>My Jetta flew on Premium fuel...it makes some sortof difference... <br /> </p><p>- Peter <br /> </p><p>"Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> <br />news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com... <br /> </p><p>- Hide quoted text -- Show quoted text -</p>> I know all the stuff about high octane doing nothing.... but I swear I can <br /> > feel something. Perhaps my car shouldn't be run on low octane fuel <br /> > anymore... who knows. Seems odd that there is different start off <br /> > performance when I changed gasolines tho. <br /> > "H2Only" <gsnie...@canspec.com> wrote in message <br /> > news:d3f7f191.0306300638.428fcb5e@posting.google.com... <br /> > > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> > <news:N6KLa.521$eF3.99351@news20.bellglobal.com>... <br /> > > > Hey <br /> <p>> > > 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>> > > I filled up with some 94 Octane gas (because it was cheap... only 61.9 <br /> > cents <br /> > > > per litre of 87 octane, 74.9 for 94octane.... regular gas was this <br /> much <br /> > a <br /> > > > few months ago). Anyhow, I took it for a blast down the highway for an <br /> > hour <br /> > > > and a bit.... seemed to get great gas mileage for a change. Anyhow now <br /> > when <br /> > > > I go to start up in first gear the car wants to jump the gun a <br /> > little.... it <br /> > > > will start to take off, but then will start to stutter because I am <br /> not <br /> > > > nearly giving it enough gas for what it wants to do (this is all still <br /> > while <br /> > > > the clutch isn't even all the way out)..... Should I have just kept <br /> > putting <br /> > > > crude old 87 Ocane in it, as per usual.... I like treating the car to <br /> 94 <br /> > > > Octane now and then to clean it out on the highway (its a city car... <br /> it <br /> > > > gets carbonized). This phenomenon only happens when I want to start <br /> off <br /> > > > quickly off the line, which I wanted to do twice, the other 2-3 <br /> starts <br /> > > > since I left the offramp were just normal acceleration attempts.... <br /> > nothing <br /> > > > out of the usual. <br /> </p><p>> > By the sound of it, 94 octane is the next best thing to a shot of <br /> > > nitrous . . . <br /> </p><p>> > One of the myths about hi-test is that it is somehow 'cleaner' than <br /> > > regular.  Hi-test is not going to magically un-carbon valves and clean <br /> > > injectors any better than regular can.  You might notice a slight <br /> > > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25% <br /> > > higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> > > enough to detect a performance difference in most of the engines that <br /> > > were designed for regular.  Sorry. <br /> </p><p>> > H2Only <br /> </p><p>> > btw, one of my cars just passed emissions with old, regular grade gas <br /> > > . . . I didn't do a thing to prepare it. <br /> <br /> </p> I know what you mean.

My Jetta flew on Premium fuel…it makes some sortof difference…

- Peter

"Rob Guenther" <robguent…@sympatico.ca> wrote in message

news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com…

- Hide quoted text — Show quoted text -

> I know all the stuff about high octane doing nothing…. but I swear I can
> feel something. Perhaps my car shouldn’t be run on low octane fuel
> anymore… who knows. Seems odd that there is different start off
> performance when I changed gasolines tho.
> "H2Only" <gsnie…@canspec.com> wrote in message
> news:d3f7f191.0306300638.428fcb5e@posting.google.com…
> > "Rob Guenther" <robguent…@sympatico.ca> wrote in message
> <news:N6KLa.521$eF3.99351@news20.bellglobal.com>…
> > > Hey

> > > 1991 Golf GL 1.8L gasoline engine (100 Hp)

> > > I filled up with some 94 Octane gas (because it was cheap… only 61.9
> cents
> > > per litre of 87 octane, 74.9 for 94octane…. regular gas was this
much
> a
> > > few months ago). Anyhow, I took it for a blast down the highway for an
> hour
> > > and a bit…. seemed to get great gas mileage for a change. Anyhow now
> when
> > > I go to start up in first gear the car wants to jump the gun a
> little…. it
> > > will start to take off, but then will start to stutter because I am
not
> > > nearly giving it enough gas for what it wants to do (this is all still
> while
> > > the clutch isn’t even all the way out)….. Should I have just kept
> putting
> > > crude old 87 Ocane in it, as per usual…. I like treating the car to
94
> > > Octane now and then to clean it out on the highway (its a city car…
it
> > > gets carbonized). This phenomenon only happens when I want to start
off
> > > quickly off the line, which I wanted to do twice, the other 2-3
starts
> > > since I left the offramp were just normal acceleration attempts….
> nothing
> > > out of the usual.

> > By the sound of it, 94 octane is the next best thing to a shot of
> > nitrous . . .

> > One of the myths about hi-test is that it is somehow ‘cleaner’ than
> > regular.  Hi-test is not going to magically un-carbon valves and clean
> > injectors any better than regular can.  You might notice a slight
> > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25%
> > higher cost.  And I doubt that most folks’ butt-dynos are sensitive
> > enough to detect a performance difference in most of the engines that
> > were designed for regular.  Sorry.

> > H2Only

> > btw, one of my cars just passed emissions with old, regular grade gas
> > . . . I didn’t do a thing to prepare it.

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5812 admin Wed, 28 Jul 2010 04:09:10 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5812     You may fee the difference, but only if your engine needs it.  If you <br /> engine needs it and it was not recommended by the manufacturer, then it is <br /> likely you have a lot of carbon build up that needs to be removed and that <br /> is causing a higher compression ratio and the need for high test.  Removing <br /> the carbon will do a lot more for you than using high test. <br /> <p>-- <br /> Joseph E. Meehan <br /> </p><p>26 + 6 = 1  It's Irish Math <br /> </p><p>"Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> <br />news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com... <br /> </p><p>- Hide quoted text -- Show quoted text -</p>> I know all the stuff about high octane doing nothing.... but I swear I can <br /> > feel something. Perhaps my car shouldn't be run on low octane fuel <br /> > anymore... who knows. Seems odd that there is different start off <br /> > performance when I changed gasolines tho. <br /> > "H2Only" <gsnie...@canspec.com> wrote in message <br /> > news:d3f7f191.0306300638.428fcb5e@posting.google.com... <br /> > > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> > <news:N6KLa.521$eF3.99351@news20.bellglobal.com>... <br /> > > > Hey <br /> <p>> > > 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>> > > I filled up with some 94 Octane gas (because it was cheap... only 61.9 <br /> > cents <br /> > > > per litre of 87 octane, 74.9 for 94octane.... regular gas was this <br /> much <br /> > a <br /> > > > few months ago). Anyhow, I took it for a blast down the highway for an <br /> > hour <br /> > > > and a bit.... seemed to get great gas mileage for a change. Anyhow now <br /> > when <br /> > > > I go to start up in first gear the car wants to jump the gun a <br /> > little.... it <br /> > > > will start to take off, but then will start to stutter because I am <br /> not <br /> > > > nearly giving it enough gas for what it wants to do (this is all still <br /> > while <br /> > > > the clutch isn't even all the way out)..... Should I have just kept <br /> > putting <br /> > > > crude old 87 Ocane in it, as per usual.... I like treating the car to <br /> 94 <br /> > > > Octane now and then to clean it out on the highway (its a city car... <br /> it <br /> > > > gets carbonized). This phenomenon only happens when I want to start <br /> off <br /> > > > quickly off the line, which I wanted to do twice, the other 2-3 <br /> starts <br /> > > > since I left the offramp were just normal acceleration attempts.... <br /> > nothing <br /> > > > out of the usual. <br /> </p><p>> > By the sound of it, 94 octane is the next best thing to a shot of <br /> > > nitrous . . . <br /> </p><p>> > One of the myths about hi-test is that it is somehow 'cleaner' than <br /> > > regular.  Hi-test is not going to magically un-carbon valves and clean <br /> > > injectors any better than regular can.  You might notice a slight <br /> > > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25% <br /> > > higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> > > enough to detect a performance difference in most of the engines that <br /> > > were designed for regular.  Sorry. <br /> </p><p>> > H2Only <br /> </p><p>> > btw, one of my cars just passed emissions with old, regular grade gas <br /> > > . . . I didn't do a thing to prepare it. <br /> <br /> </p>     You may fee the difference, but only if your engine needs it.  If you
engine needs it and it was not recommended by the manufacturer, then it is
likely you have a lot of carbon build up that needs to be removed and that
is causing a higher compression ratio and the need for high test.  Removing
the carbon will do a lot more for you than using high test.

–
Joseph E. Meehan

26 + 6 = 1  It’s Irish Math

"Rob Guenther" <robguent…@sympatico.ca> wrote in message

news:Sn0Ma.3889$Ec2.238660@news20.bellglobal.com…

- Hide quoted text — Show quoted text -

> I know all the stuff about high octane doing nothing…. but I swear I can
> feel something. Perhaps my car shouldn’t be run on low octane fuel
> anymore… who knows. Seems odd that there is different start off
> performance when I changed gasolines tho.
> "H2Only" <gsnie…@canspec.com> wrote in message
> news:d3f7f191.0306300638.428fcb5e@posting.google.com…
> > "Rob Guenther" <robguent…@sympatico.ca> wrote in message
> <news:N6KLa.521$eF3.99351@news20.bellglobal.com>…
> > > Hey

> > > 1991 Golf GL 1.8L gasoline engine (100 Hp)

> > > I filled up with some 94 Octane gas (because it was cheap… only 61.9
> cents
> > > per litre of 87 octane, 74.9 for 94octane…. regular gas was this
much
> a
> > > few months ago). Anyhow, I took it for a blast down the highway for an
> hour
> > > and a bit…. seemed to get great gas mileage for a change. Anyhow now
> when
> > > I go to start up in first gear the car wants to jump the gun a
> little…. it
> > > will start to take off, but then will start to stutter because I am
not
> > > nearly giving it enough gas for what it wants to do (this is all still
> while
> > > the clutch isn’t even all the way out)….. Should I have just kept
> putting
> > > crude old 87 Ocane in it, as per usual…. I like treating the car to
94
> > > Octane now and then to clean it out on the highway (its a city car…
it
> > > gets carbonized). This phenomenon only happens when I want to start
off
> > > quickly off the line, which I wanted to do twice, the other 2-3
starts
> > > since I left the offramp were just normal acceleration attempts….
> nothing
> > > out of the usual.

> > By the sound of it, 94 octane is the next best thing to a shot of
> > nitrous . . .

> > One of the myths about hi-test is that it is somehow ‘cleaner’ than
> > regular.  Hi-test is not going to magically un-carbon valves and clean
> > injectors any better than regular can.  You might notice a slight
> > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25%
> > higher cost.  And I doubt that most folks’ butt-dynos are sensitive
> > enough to detect a performance difference in most of the engines that
> > were designed for regular.  Sorry.

> > H2Only

> > btw, one of my cars just passed emissions with old, regular grade gas
> > . . . I didn’t do a thing to prepare it.

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5810 admin Wed, 28 Jul 2010 04:09:09 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5810 I know all the stuff about high octane doing nothing.... but I swear I can <br /> feel something. Perhaps my car shouldn't be run on low octane fuel <br /> anymore... who knows. Seems odd that there is different start off <br /> performance when I changed gasolines tho. <br /> "H2Only" <gsnie...@canspec.com> wrote in message <br /> <br />news:d3f7f191.0306300638.428fcb5e@posting.google.com... <br /> > "Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> <br /><news:N6KLa.521$eF3.99351@news20.bellglobal.com>... <br /> <p>- Hide quoted text -- Show quoted text -</p>> > Hey <br /> <p>> > 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>> > I filled up with some 94 Octane gas (because it was cheap... only 61.9 <br /> cents <br /> > > per litre of 87 octane, 74.9 for 94octane.... regular gas was this much <br /> a <br /> > > few months ago). Anyhow, I took it for a blast down the highway for an <br /> hour <br /> > > and a bit.... seemed to get great gas mileage for a change. Anyhow now <br /> when <br /> > > I go to start up in first gear the car wants to jump the gun a <br /> little.... it <br /> > > will start to take off, but then will start to stutter because I am not <br /> > > nearly giving it enough gas for what it wants to do (this is all still <br /> while <br /> > > the clutch isn't even all the way out)..... Should I have just kept <br /> putting <br /> > > crude old 87 Ocane in it, as per usual.... I like treating the car to 94 <br /> > > Octane now and then to clean it out on the highway (its a city car... it <br /> > > gets carbonized). This phenomenon only happens when I want to start off <br /> > > quickly off the line, which I wanted to do twice, the other 2-3  starts <br /> > > since I left the offramp were just normal acceleration attempts.... <br /> nothing <br /> > > out of the usual. <br /> </p><p>> By the sound of it, 94 octane is the next best thing to a shot of <br /> > nitrous . . . <br /> </p><p>> One of the myths about hi-test is that it is somehow 'cleaner' than <br /> > regular.  Hi-test is not going to magically un-carbon valves and clean <br /> > injectors any better than regular can.  You might notice a slight <br /> > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25% <br /> > higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> > enough to detect a performance difference in most of the engines that <br /> > were designed for regular.  Sorry. <br /> </p><p>> H2Only <br /> </p><p>> btw, one of my cars just passed emissions with old, regular grade gas <br /> > . . . I didn't do a thing to prepare it. <br /> <br /> </p> I know all the stuff about high octane doing nothing…. but I swear I can
feel something. Perhaps my car shouldn’t be run on low octane fuel
anymore… who knows. Seems odd that there is different start off
performance when I changed gasolines tho.
"H2Only" <gsnie…@canspec.com> wrote in message

news:d3f7f191.0306300638.428fcb5e@posting.google.com…
> "Rob Guenther" <robguent…@sympatico.ca> wrote in message

<news:N6KLa.521$eF3.99351@news20.bellglobal.com>…

- Hide quoted text — Show quoted text -

> > Hey

> > 1991 Golf GL 1.8L gasoline engine (100 Hp)

> > I filled up with some 94 Octane gas (because it was cheap… only 61.9
cents
> > per litre of 87 octane, 74.9 for 94octane…. regular gas was this much
a
> > few months ago). Anyhow, I took it for a blast down the highway for an
hour
> > and a bit…. seemed to get great gas mileage for a change. Anyhow now
when
> > I go to start up in first gear the car wants to jump the gun a
little…. it
> > will start to take off, but then will start to stutter because I am not
> > nearly giving it enough gas for what it wants to do (this is all still
while
> > the clutch isn’t even all the way out)….. Should I have just kept
putting
> > crude old 87 Ocane in it, as per usual…. I like treating the car to 94
> > Octane now and then to clean it out on the highway (its a city car… it
> > gets carbonized). This phenomenon only happens when I want to start off
> > quickly off the line, which I wanted to do twice, the other 2-3  starts
> > since I left the offramp were just normal acceleration attempts….
nothing
> > out of the usual.

> By the sound of it, 94 octane is the next best thing to a shot of
> nitrous . . .

> One of the myths about hi-test is that it is somehow ‘cleaner’ than
> regular.  Hi-test is not going to magically un-carbon valves and clean
> injectors any better than regular can.  You might notice a slight
> improvement in MPG (maybe 1-2), but nowhere near enough to justify 25%
> higher cost.  And I doubt that most folks’ butt-dynos are sensitive
> enough to detect a performance difference in most of the engines that
> were designed for regular.  Sorry.

> H2Only

> btw, one of my cars just passed emissions with old, regular grade gas
> . . . I didn’t do a thing to prepare it.

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5811 admin Wed, 28 Jul 2010 04:09:09 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5811 <p>gsnie...@canspec.com (H2Only) wrote in message <news:d3f7f191.0306300638.428fcb5e@posting.google.com>... <br /> </p><p>> One of the myths about hi-test is that it is somehow 'cleaner' than <br /> > regular.  Hi-test is not going to magically un-carbon valves and clean <br /> > injectors any better than regular can.  You might notice a slight <br /> > improvement in MPG (maybe 1-2), but nowhere near enough to justify 25% <br /> > higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> > enough to detect a performance difference in most of the engines that <br /> > were designed for regular.  Sorry. <br /> </p><p>> H2Only <br /> </p><p>> btw, one of my cars just passed emissions with old, regular grade gas <br /> > . . . I didn't do a thing to prepare it. <br /> <br />It shouldn't even get you higher mileage.  Octane is not directly <br /> related to energy content; in general the things they do to increase <br /> octane actually *decrease* the energy content of gas.  So mileage with <br /> the low octane version should be at least as good as with high-test, <br /> if not better.  So if a car gets along on the cheap stuff without <br /> excessive knocking, there is *no* reason I know of to spend more. <br /> </p><p>- Mark W. <br /> </p> gsnie…@canspec.com (H2Only) wrote in message <news:d3f7f191.0306300638.428fcb5e@posting.google.com>…

> One of the myths about hi-test is that it is somehow ‘cleaner’ than
> regular.  Hi-test is not going to magically un-carbon valves and clean
> injectors any better than regular can.  You might notice a slight
> improvement in MPG (maybe 1-2), but nowhere near enough to justify 25%
> higher cost.  And I doubt that most folks’ butt-dynos are sensitive
> enough to detect a performance difference in most of the engines that
> were designed for regular.  Sorry.

> H2Only

> btw, one of my cars just passed emissions with old, regular grade gas
> . . . I didn’t do a thing to prepare it.

It shouldn’t even get you higher mileage.  Octane is not directly
related to energy content; in general the things they do to increase
octane actually *decrease* the energy content of gas.  So mileage with
the low octane version should be at least as good as with high-test,
if not better.  So if a car gets along on the cheap stuff without
excessive knocking, there is *no* reason I know of to spend more.

- Mark W.

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5809 admin Wed, 28 Jul 2010 04:09:08 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5809 <p></p><p>- Hide quoted text -- Show quoted text -</p>"Rob Guenther" <robguent...@sympatico.ca> wrote in message <news:N6KLa.521$eF3.99351@news20.bellglobal.com>... <br /> > Hey <br /> <p>> 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>> I filled up with some 94 Octane gas (because it was cheap... only 61.9 cents <br /> > per litre of 87 octane, 74.9 for 94octane.... regular gas was this much a <br /> > few months ago). Anyhow, I took it for a blast down the highway for an hour <br /> > and a bit.... seemed to get great gas mileage for a change. Anyhow now when <br /> > I go to start up in first gear the car wants to jump the gun a little.... it <br /> > will start to take off, but then will start to stutter because I am not <br /> > nearly giving it enough gas for what it wants to do (this is all still while <br /> > the clutch isn't even all the way out)..... Should I have just kept putting <br /> > crude old 87 Ocane in it, as per usual.... I like treating the car to 94 <br /> > Octane now and then to clean it out on the highway (its a city car... it <br /> > gets carbonized). This phenomenon only happens when I want to start off <br /> > quickly off the line, which I wanted to do twice, the other 2-3  starts <br /> > since I left the offramp were just normal acceleration attempts.... nothing <br /> > out of the usual. <br /> <br />By the sound of it, 94 octane is the next best thing to a shot of <br /> nitrous . . . <br /> </p><p>One of the myths about hi-test is that it is somehow 'cleaner' than <br /> regular.  Hi-test is not going to magically un-carbon valves and clean <br /> injectors any better than regular can.  You might notice a slight <br /> improvement in MPG (maybe 1-2), but nowhere near enough to justify 25% <br /> higher cost.  And I doubt that most folks' butt-dynos are sensitive <br /> enough to detect a performance difference in most of the engines that <br /> were designed for regular.  Sorry. <br /> </p><p>H2Only <br /> </p><p>btw, one of my cars just passed emissions with old, regular grade gas <br /> . . . I didn't do a thing to prepare it. <br /> </p>

- Hide quoted text — Show quoted text -

"Rob Guenther" <robguent…@sympatico.ca> wrote in message <news:N6KLa.521$eF3.99351@news20.bellglobal.com>…
> Hey

> 1991 Golf GL 1.8L gasoline engine (100 Hp)

> I filled up with some 94 Octane gas (because it was cheap… only 61.9 cents
> per litre of 87 octane, 74.9 for 94octane…. regular gas was this much a
> few months ago). Anyhow, I took it for a blast down the highway for an hour
> and a bit…. seemed to get great gas mileage for a change. Anyhow now when
> I go to start up in first gear the car wants to jump the gun a little…. it
> will start to take off, but then will start to stutter because I am not
> nearly giving it enough gas for what it wants to do (this is all still while
> the clutch isn’t even all the way out)….. Should I have just kept putting
> crude old 87 Ocane in it, as per usual…. I like treating the car to 94
> Octane now and then to clean it out on the highway (its a city car… it
> gets carbonized). This phenomenon only happens when I want to start off
> quickly off the line, which I wanted to do twice, the other 2-3  starts
> since I left the offramp were just normal acceleration attempts…. nothing
> out of the usual.

By the sound of it, 94 octane is the next best thing to a shot of
nitrous . . .

One of the myths about hi-test is that it is somehow ‘cleaner’ than
regular.  Hi-test is not going to magically un-carbon valves and clean
injectors any better than regular can.  You might notice a slight
improvement in MPG (maybe 1-2), but nowhere near enough to justify 25%
higher cost.  And I doubt that most folks’ butt-dynos are sensitive
enough to detect a performance difference in most of the engines that
were designed for regular.  Sorry.

H2Only

btw, one of my cars just passed emissions with old, regular grade gas
. . . I didn’t do a thing to prepare it.

]]> By: admin http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter/comment-page-1#comment-5807 admin Wed, 28 Jul 2010 04:09:07 +0000 http://www.vw-autoclub.com/ran-on-94-octane-from-87-now-surge-of-momentary-power-at-start-then-stutter#comment-5807     Getting higher than recommend octane will not help your car, but it may <br /> make you think it does.  That is assuming your car does not have a problem <br /> to start with.  It does not have better cleaners or anything your care <br /> should need. <br /> <p>    My guess is the problem you are not seeing has nothing to do with the <br /> gas, other than possibly it was dirty and now a fuel filter is clogged. <br /> </p><p>    Check  to see if the computer has stored any error codes, and do the <br /> basic stuff first.  If it needs filters, plugs, wires etc, take care of them <br /> and address any error codes. <br /> </p><p>-- <br /> Joseph E. Meehan <br /> </p><p>26 + 6 = 1  It's Irish Math <br /> </p><p>"Rob Guenther" <robguent...@sympatico.ca> wrote in message <br /> <br />news:N6KLa.521$eF3.99351@news20.bellglobal.com... <br /> </p><p>- Hide quoted text -- Show quoted text -</p>> Hey <br /> <p>> 1991 Golf GL 1.8L gasoline engine (100 Hp) <br /> </p><p>> I filled up with some 94 Octane gas (because it was cheap... only 61.9 <br /> cents <br /> > per litre of 87 octane, 74.9 for 94octane.... regular gas was this much a <br /> > few months ago). Anyhow, I took it for a blast down the highway for an <br /> hour <br /> > and a bit.... seemed to get great gas mileage for a change. Anyhow now <br /> when <br /> > I go to start up in first gear the car wants to jump the gun a little.... <br /> it <br /> > will start to take off, but then will start to stutter because I am not <br /> > nearly giving it enough gas for what it wants to do (this is all still <br /> while <br /> > the clutch isn't even all the way out)..... Should I have just kept <br /> putting <br /> > crude old 87 Ocane in it, as per usual.... I like treating the car to 94 <br /> > Octane now and then to clean it out on the highway (its a city car... it <br /> > gets carbonized). This phenomenon only happens when I want to start off <br /> > quickly off the line, which I wanted to do twice, the other 2-3  starts <br /> > since I left the offramp were just normal acceleration attempts.... <br /> nothing <br /> > out of the usual. <br /> </p><p>> BTW I could feel the 94 octane working nicely thru the system.... the car <br /> > actually felt like giving something very close to respectable performance <br /> > going from 130-150kph.... almost got it to 160, then realized as this is <br /> the <br /> > Canada day long weekend the cops would be out in more force.... slowed her <br /> > back down to the normal flow of traffic (120-135). <br /> <br /> </p>     Getting higher than recommend octane will not help your car, but it may
make you think it does.  That is assuming your car does not have a problem
to start with.  It does not have better cleaners or anything your care
should need.

    My guess is the problem you are not seeing has nothing to do with the
gas, other than possibly it was dirty and now a fuel filter is clogged.

    Check  to see if the computer has stored any error codes, and do the
basic stuff first.  If it needs filters, plugs, wires etc, take care of them
and address any error codes.

–
Joseph E. Meehan

26 + 6 = 1  It’s Irish Math

"Rob Guenther" <robguent…@sympatico.ca> wrote in message

news:N6KLa.521$eF3.99351@news20.bellglobal.com…

- Hide quoted text — Show quoted text -

> Hey

> 1991 Golf GL 1.8L gasoline engine (100 Hp)

> I filled up with some 94 Octane gas (because it was cheap… only 61.9
cents
> per litre of 87 octane, 74.9 for 94octane…. regular gas was this much a
> few months ago). Anyhow, I took it for a blast down the highway for an
hour
> and a bit…. seemed to get great gas mileage for a change. Anyhow now
when
> I go to start up in first gear the car wants to jump the gun a little….
it
> will start to take off, but then will start to stutter because I am not
> nearly giving it enough gas for what it wants to do (this is all still
while
> the clutch isn’t even all the way out)….. Should I have just kept
putting
> crude old 87 Ocane in it, as per usual…. I like treating the car to 94
> Octane now and then to clean it out on the highway (its a city car… it
> gets carbonized). This phenomenon only happens when I want to start off
> quickly off the line, which I wanted to do twice, the other 2-3  starts
> since I left the offramp were just normal acceleration attempts….
nothing
> out of the usual.

> BTW I could feel the 94 octane working nicely thru the system…. the car
> actually felt like giving something very close to respectable performance
> going from 130-150kph…. almost got it to 160, then realized as this is
the
> Canada day long weekend the cops would be out in more force…. slowed her
> back down to the normal flow of traffic (120-135).

]]>