opposite_locker
Thread starter
Mercedes calls for OCI's at a fixed 10k in the US, which is very conservative compared to the service intervals in Europe (up to 20k). I would consider leaving the factory fill in for the full 10k because, at least on the MB models with this engine, a special Mobil 1 break-in oil is used (IIRC it is a 10w30).
We are now running the 5w40 Formula M at 10k intervals in both diesel MB's ('05 E cdi & '09 GL BLuetec).
We are now running the 5w40 Formula M at 10k intervals in both diesel MB's ('05 E cdi & '09 GL BLuetec).