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      10-23-2012, 05:09 PM   #25
unrealii
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Drives: '09 335 E93 6MT
Join Date: Mar 2011
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2009 BMW 335I  [5.00]
Quote:
Originally Posted by FCBuff View Post
Both are good oils. M1 0w-40 meets all current specs, GC does not...if that matters to you. I believe M1 is better oil, but have used GC for years with never a problem.
Dug this thread up in a google search.
Which specs does GC not meet?
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