I posted here before and didn't really get a definitive answer. I was in a time crunch before and just picked something quick. So now that I have more time before I decide I would like to post this again. I am wondering what would be good oil to run in my 2.7 twin turbo Audi. It requires anything from 0w-30 to 5w-40. I was considering rotella t6, Mobil 1 0w-40 euro, and German castrol 0w-40. I want something I can get locally and easily and these 3 fit the bill from what I see on the shelves at Walmart and auto parts stores. Any info would be great! As well as opinions! Thanks everyone!