I live in Ontario where we get temps from -30 deg C up to +35 deg C. I’m thinking Motul 5w40 8100. I don’t have (touchwood) any oil consumption issues on my RS4. The Motul is what seems to be the choice in the B6/7 S4’s, esp ones with oil consumption issues.
Other oils I’ve seen - Castrol (the german stuff), Lubro Moly top tec 5w30, Lubro Moly race tec 10w60
I know this has been done to death, but just wanted to know what everyone’s thinking is these days.