All,
A suggestion on the oil to buy?
1. What kind of vehicle you have - BMw 325Ci - 2dr Coupe, M54, 135K
2. What your owner's manual says -- 5w30, 15W40 15K mile change interval - no other info
3. Where you live - Bethlehem, PA
4. How you drive (easy? hard? fast? slow?) - Fast Driving, NO...