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I will probably change to Castrol starting next time, but I've always had good results with Mobil 1. Crankcase looked cleaner after I started using it back in 2007 in various BMWs. BMW oil and the German Castrol (0w-30), despite being very good oils, can't match the cleaning abilities of Mobil 1 IMO. It will be hard to let it go.
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Black Sapphire MetallicNevada BrownDark Bamboo e70 X5 xDrive4.8
Alpine WhiteCoral RedAluminum f30 328i Sportline/6MT
Imola RedBlackBlack Aluminum e46 330i ZHP/6MT
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