The plot thickens [Was:Re: non-uniform tire wear]

[Elliott Potter <epotter@abraxis.com>]

You know, it's interesting that you mentioned the type of tires--I've
got the same brand/size tires, and my car was pulling a bit to the
right.  I took it to the Goodyear place to have it re-aligned, and they
told me that the car was in line but both of the right side tires were
worn more than the left side tires.
The car is a '93 90CS, no quattro.

I just had them switch the front right and front left tires, and now the
car pulls to the left instead.  I'm just going to live with it and get
some new tires (not Goodyears).
Not sure of the tire-rotation procedure on the quattro.

Maybe someone else has some hints?  I'm stumped.
-- 
Elliott

"There are two major products to come out of Berkeley:  LSD and UNIX. 
We don't believe this to be a coincidence."
	-- Unknown


Zod wrote:
> 
> The back tires show the same non-uniform wear, right tire is worn
> more than the left.  I have been rotating the tires in pairs, front to
> back without crossing from left to right.  So, it's probably not the
> tires, but I'll check their date codes anyway.
> 
> Incidentally, would it be a bad idea (from a safety point of view) to
> cross the front right tire (worn) with the rear left one (not so worn)?
>  The tires are Goodyear Eagle GAs 195 65 HR 15, with a little over 40k
> miles on them.
> -Farzad
> 
> Elliott Potter wrote:
> >
> > What about the back tires, are they about the same?  Have you tried
> > rotating the tires?  If so, did the tire that moved to the right front
> > axle wear faster than the rest again?
> > Also maybe check the date codes on the tires; could the one that's
> > wearing faster be from a different batch?
> > --
> > Elliott
> >
> > "There are two major products to come out of Berkeley:  LSD and UNIX.
> > We don't believe this to be a coincidence."
> >         -- Unknown
> >
> > Zod wrote:
> > >
> > > Folks:
> > > I have a '95 90Q that runs pretty well.  But can anyone explain why a
> > > tire on the right side of my front axle would wear more than a tire on
> > > the left side?
> > >
> > > I noticed that the wear patterns of the two tires are fairly equal, but
> > > the amount of wear is quite different between the two sides (the right
> > > tire is spent, but the left still seems to have some life left in it).
> > >
> > > The car does not pull or drift, no wheel shimmy, and no accidents that I
> > > know of, and I bought the car new ...  I have mentioned the
> > > 'problem' to Audi and they are still thinking about an answer.
> > >
> > > Thanks for any suggestions,
> > > -Farzad.