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      04-20-2017, 02:52 PM   #57
Flying Ace
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Drives: G05 45e, 997.1 & 991.1 GT3s
Join Date: Jul 2014
Location: SF, CA

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common issue with the M57 motors. My E70 still hasn't clogged yet. It comes down to driving longer distances to allow a proper DFP regen once a week. IIRC on the M57, BMW SIB has a prescribed minimum speed and time to drive to get the regen. I want to say you need to do at least 45 mph for 20 miles.
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