5W-30 M1 ok?
Audi suggests 5w40... I've been running 5w30 -- though I'm going to switch soon... possibly amzoil 5w40. Always use full synthetic, and I always change it every 3000 miles or so -- oil and OEM filter.
I am using it in the summer in so cal so... It is fully synteic and i will be ordering a new oil filter. I havent opened it yet so should i return it or no? And i thought the manual said every 5,000?



