Originally Posted By: m6pwr
Why did you depart from the 5w30 BMW diesel oil? Why do we think we know more than the factory?
I didn't say that. In fact, I used the 5w30 for over 50k miles. It's a case of wanting an oil I can obtain easily, and be used on 3 vehicles(04 ML500, 09 TDI, 10 x5 35d)...