Did the oil change service today using Castrol Edge Titanium 0W40 oil and BMW oil filter after 11K's and the oil that came out was BLACK as......
Do post which other non BMW oil do anyone uses in there car? I am interested.
Also, changing the oil filter twice/third in one oil change is a a good idea? (I just want to make sure there is sludge in the engine, that I am suspecting).