5W40 or 0W40 MOBIL 1
End result is this:
Mercedes-AMG in Affalterbach recommends:
AMG 55 engines should use Mobil 1 0W-40 M-B Spec 229.5
AMG 63 engines should use Movil 1 5W-40 M-B Spec 229.51
JDB
This link was post # 2 in this thread.
229.x1 oils are for DPF/Bluetec models only.
There is no reason to use Mobil, it is only one of the possible choices.




