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      12-22-2012, 07:44 PM   #20
gimmethemuumuu
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Drives: 2011 E90 M3, IB/FR/Bk
Join Date: Apr 2009
Location: Indianapolis, IN

iTrader: (4)

As others have mentioned, owner's manual says every 37K miles. Most dealers do it at around 30K. Personally, I plan to do it every 25 or 30K miles, on the regular