We just bought an 03 A6 2.7 with 7500 miles on it. The car is totally mint! What is the correct tire pressues and would you switch to Mobil 1? If we switch o to Mobil 1 what would be the recommended oil change interval?
Thanks...

 

I'm a new owner too, an '02 Avant. I didn't find the sticker on my car that gives tire pressures and settled after some research on 32 lbs front and rear. That was advice from my dealership. Higher pressures which some run would effect the contact patch size adversely.

 

Ah yes, which oil. Knew I forgot something. What service interval do you plan to use? There might be some use in Mobil 1 if yo wait 10k miles, but i doubt it. From my research the only advantage to synthetics is in test conditions of extreme pressure and temperature. Extremes I'm not very likely to run into. Synthetics don't clean any better and they do carry the same amount of engine junk around. I'd use dino oil and change it at 5k miles myself.

 

I would go with synthetic. I believe it is cleaner and doesn't leave sediment in your engine. plus non synthetic is bad for your turbos so i would go with synthetic. elf is the best mobil 1 is pretty good

 

This will be my partners company car and he does a fair amount of miles. What's strange is that I have 06 C6 vette and you MUST run syn oil or void your warranty. GM found it essential for the HP LS2 engines... I always thought that turbos were harder on oil than non turbos hence the Mobil 1 question. I know using syn oil my 05 V8 4Runner Toyota factory allows me to greatly lengthen my oil change intervals. Almost all commerical aircraft now also use syn oil. Just wondering what the majority of forum owners use for oil. Thanks for the TP info..... I think we'll use 32 psi front and rear and see how it rides and handles. It's a great car and I was also able to purcahse the extended warranty from the Audi dealer. We paid 26,200 for the car coming off a lease. Thought that was a decent price considering only 7500 miles and just about every option offered in 03. Not a mark or scratch on the car.... It's totally clean inside and out.
Thanks again for the info.......

 

correct tire pressures are listed somewhere on your car, usually on one of the C-pillars or inside the fuel door. it will probably be 36 front 34 rear. people who run the same pressure all around obvious haven't considered that this vehicle does not have a 50/50 weight distribution. i'm not sure what your specs are, but my 2000 a6 has a 3660 curb weight w/ a 59/41 weight distribution.. the math comes to 1079.7lb per front tire, and 750.3lb per rear tire... common sense says different tire pressures are going to be needed to provide a balance.

 

Bringing back a three year old thread involving a discussion of tire pressure by two members who have not even logged on to the forum in over a year?

 

i think it should be 34 in front and 32 from back.

 

Right tire pressure can easily be known by mechanics. they are expert

 

Only 7500 miles! I'm jealous.

1 - Use Mobil1 0W-40. It's European spec and you definitely want the 0W for cold starting with turbos -- they need instant lubrication. The original owner of my A6 used it and so have I. It gets changed every 8-10k (I do a lot of highway driving) and I have 144k miles on the car.

2 - It should be posted on the door. Mine states 35 lbs for the 17" wheels. I run 36 (a little extra to reduce flexing at highway speeds) and got 50k miles out of my second set of Pirelli P6 FourSeasons, with rotations every 5-6k. They were rated for 40k by Discount Tire.