I've got a 2006 C220 CDi. In all the previous services the MB dealer has used Shell Helix Ultra 5w30. I took my car for a service yesterday at a different MB dealer and they used Mobil 1 5w40 oil (slightly different grade).
I also got a 1 litre top-up to use between services and that is Mobil 1 0w40 oil (again a totally different grade)
2 questions. Have they used the right oil? And shouldn't the top-up litre be the same grade as what they put in (if thats correct that is)
I also got a 1 litre top-up to use between services and that is Mobil 1 0w40 oil (again a totally different grade)
2 questions. Have they used the right oil? And shouldn't the top-up litre be the same grade as what they put in (if thats correct that is)