Quote:
Originally Posted by JRV
Not going to dispute this because I really couldn't tell you, but what I will say from observation is why is this issue only prevalent with BMWs NA M high revving motors? Shouldn't this be across the board along with other manufacturers?
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+1. "Joe" has some interesting comments, from the amazing performance difference without ethanol to this. Sorry, but I don't buy it. Eliminating ethanol will *not* solve a bearing clearance issue if you have one.