Fuel grade in A6 4.2

[Joshua Van Tol]

It's got to be some other cause. Not running premium wouldn't cause that.
Perhaps you do a lot of very short trips in that vehicle?


On Wed, Apr 14, 2010 at 12:05 PM, Jeremiah Curry <jeremiah at curryclan.net>wrote:

> Not sure if this is true for a 4.2, but I took my passat 2.8 into my local
> independent audi/vw mechanic because it was running poorly and even dying.
> They said it had carbon buildup in the head due to not using premium (I had
> been using plus) I was skeptical at first, but they cleaned out the carbon
> and it ran like a champ, they told me to only use premium.  Now that is all
> I use in all of my cars, since they all call for it.  Wouldn't use it if
> they didn't
>
> Jeremiah
> 2001 Audi Allroad 2.7T
> 1992 Toyora MR2 Turbo
> 1957 Triumph TR3
>
>
> -----Original Message-----
> From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com]
> On
> Behalf Of Eric Sanborn
> Sent: Wednesday, April 14, 2010 5:34 AM
> To: Quattro List
> Subject: Fuel grade in A6 4.2
>
> A friend and coworker of mine just got an A6 with the 4.2 engine. It is a
> 2000 model year. It calls for 91 octane. If he is willing to be a little
> down on power can he use 89 mid grade? I seem to recall that it will just
> retard timing. Is this correct?
>
> Thanks
> Eric
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