Just picked up a pre-owned '03 A4Q 3.0 Sport 6 spd. I had the dealer
take the OEM "sport" tires off and install 17" Z rated Toyo Proxies.
The owners manual says to check the sticker on the drivers side door
jam, but there is no pressure spec, just F/R weight balance. The
manual also says if you run "All Season" tires, inflate at 3 lbs. over
the pressure stated on the sticker. Any advice?
There should be a sticker on the door jam on the right rear. It will give you
recommended pressures for tires (by size) with what the normal load will be. I
generally inflate a few pounds more (recommend 36, I put in 40). The ride
suffers a bit with the higher pressures, but you'll never "tuck" a tire in an
emergency maneuver. Check your pressures as often as you check your oil.
Don't get comfortable with the thought that 40 psi will last several months --
it won't. Correct tire pressures = better safety and tire wear.
'03 RS-6 Avus/Ebony
Look for tire pressure stickers either on the B pillars (between front and
rear doors) or on the fuel filler door.
Also, the 3 PSI over is mainly for winter (M&S) tires, IIRC. The reason
being is that you lose about 1 PSI for every 10 degree F temperature drop.
So if you inflate them now, by the time it's January and much colder, you
won't be running underinflated.
Of course I strongly advise to check your tire pressure much more often than
On 16 Nov 2003 18:58:22 -0800, email@example.com (howitzer) wrote:
FWIW, I've been playing with tire pressures this past autocross
season. I'm running Michelin Pilot Sports as opposed to Toyos. I've
found that the suggested tire pressure ratings are pretty low. IOW,
the max ratings on the tires are around 50 PSI. I run them about
40F/44R PSI cold. I've also found that my gas mileage increases and
the ride feels better (and it corners better) at the higher pressures.
Don't ever exceed the rated pressures though. Again, FWIW...
Good advice. Thirty psi seems terribly low, especially if Howard loses a few
pounds of pressure (and any tire will). At such a low pressure, tire tuck is
very possibly. All tires are meant to be driven on their treads, not their
'03 SR-6 Avus/Ebony
I'm running a similar setup on my '02 A4 Avant (Proxie FZs). I keep the
pressure between 36 and 39 PSI. I tend to aim high when I expect the
temperature to drop as is presently the case and reverse it for the
opposite. Like others here I believe that 33 PSI is too low.
Objective, rather than subjective, is best in my view - if you can, measure
the wear rate and temperature across the tyre width - cold pressure is only
a guide as to what will happen when you actually /use/ the tyres..
This will vary (slightly) from brand to brand, across the life of the tyre,
and - as has been said - with ambient temperature. Snow tyres should be less
sensitive to this, given the lower speed range..
Hairy One Kenobi
Disclaimer: the opinions expressed in this opinion do not necessarily
I believe that it has something to do with new Privacy Act which seems to
cover everything from your personal preference for tire pressure to the type
of toilet paper you use. In fact I feel safer already.
Best of luck with your Audi.
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