[V8] Regular Gas/Hi Temp Warning

[Tony and Lillie]

In the 60K we've had ours, that has been our experience too. In fact, I've 
run 100 octane from the local guys (5 gallons when it was near empty). It 
made NO difference in performance. It also will not hurt your engine. In the 
old days, yes. The V8 has a very sophisticated engine management system. It 
will not allow you to affect it. The knock sensors will detect pinging long 
before you hear it, and adjust the timing accordingly. The new FSI engines 
are so advanced, Audi says they can even be run on 80 octane. Performance 
will suffer greatly, of course. But, the 3.2 is 12.5:1, where the V8 is only 
10.6:1.

Tony Hoffman

----- Original Message ----- 
From: "Stafford, Kenneth A." <stafford at WPI.EDU>
To: <v8 at audifans.com>
Sent: Tuesday, August 09, 2005 1:23 PM
Subject: [V8] Regular Gas/Hi Temp Warning


>
> Brad,
>
> In the 100000 miles I've put on my '91, all but 2 tanks have been with
> regular grade gas.  The joys of this car IMO are its effortless high speed
> cruising and fantastic winter performance--neither of which seem to be
> effected by 87 octane.  No doubt that the low end grunt is better with hi
> test, but doesn't seem to effect the real 65-90 rush.  I've experienced no
> drivability or pinging issues.
>