You should only be using 5w40 if you go Mobil. Anything else should be illegal. Also, if you wanted to run 5w30 or 10w30, then Pennzoil Platinum/Ultra are the way to go. I run M1 5w40 in my A4 and PP in my G8.

 

PO BROUGHT her own mobil 1 5w-40 to the dealer, but did it every 10k for the first 50k then every 5-7k from then till 129xxx, when I picked it up.

Guess whos oil pressure light came on within the first 6 hours of driving the car, seconds after first doing a 2nd gear WOT pull?

I do mine every 3k or before. No exceptions.

I use mobil1 but thats because my mom has a 8v 2002 jetta that has 181k, shes used mobil1 since first driving it home from the lot

 

so i should be running mobile one 10w-40 is what your saying?

 

5w40, not 10w40, unless it says European

 

In Minnesota, the Audi dealers here use Mobil 1 0w40. So that's what I've been using.

 

I didn't know they had a 0w40, actually.

 

Yeah Mobile 1 0w 40 is what they told me to use so that's what i use. Could be a climate thing, Ik a certified tech, he works on r8's and stuff so im not going to question him haha, yep 0w 40 in the great state of Iowa.

 

Colorado mountains... I've used M1 0w-40 with no problems here.

 

Okay. I shall revise my recommendation to include both 0w40 and 5w40. Just looked it up and it is a European car oil. (European formula oils generally protect better while American formula oils are geared for that bit extra gas mileage because Americans are dumb that way)

 

^^^^Yep exactly