Do I need a diesel or petrol oil for my car?. 3 Series Petrol Convertible 318 Ci 1995cc 110KW 150HP N46 B20 A;N46 B20 C. 3 Series Petrol Convertible 318 Ci 1995cc 105KW 143HP N42 B20 A;N46 B20 A. 3 Series Petrol Convertible M3 3.0 2990cc 210KW 286HP S50 B30 (306S1).
