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What oil to use

1K views 0 replies 1 participant last post by  dannymc95 
#1 · (Edited)
So I have a fully built M5 that was done by Troy JEUP. Engine trans rear end everything was built. I was just wondering what oil weight do you guys use? I heard that recommended oil is to heavy and that's why vanos pump can fail. I'm on my 2nd oil change on this building engine and oil recommended was redline 15w50.. your thoughts
 
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