Quote Originally Posted by sprintman View Post
Useless, as many dealers are using/selling the wrong spec oil, often
M1 5W30. If dealers can't work it out no wonder ordinary punters have trouble.
The MB dealer I work for uses Quaker State exclusively. I tear up every time I pump the QS into an AMG

Back on topic: I run rotella in everything but the M which gets Castrol TWS