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      05-21-2013, 12:10 PM   #2
jjw2331
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Drives: 2011 JtBlk e92 M3
Join Date: Sep 2008
Location: Michigan

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I don't have it on my M but I've seen it on many BMWs. My buddies M3 had a bad case of it. Use a light polish and applicator foam pad and rub it clean. After it's clean, apply sealant to prevent it from oxidizing again.
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