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      07-30-2012, 08:21 AM   #37
Surly73
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Drives: '07 328i 6MTsp / '11 535xi 8AT
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Location: Oakville, Ontario

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Quote:
Originally Posted by neilvosko View Post
I am curious to see if e85 keeps valves cleaner
The build up on N54/N55s has nothing to do with fuel. They are direct injection and fuel never touches the valves - THAT is the origin of the whole problem. Changing fuel or putting additives in your fuel are going to do absolutely nothing.