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      07-14-2012, 09:43 AM   #22
Redadair
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Drives: 2011 1M #293 - 88 E30 M3
Join Date: Apr 2007
Location: Murray

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My vote is a bad tank of gas. Run you tank out and fill at your local Chevron or other Top Tier station.

Turbo engines will use up every bit of Octane they can get, the anti Knock censers will kick in to reduce timing and power to protect from engine Detonation. This is most likely what you are feeling.
__________________
2011 1M, Valencia Orange, All options.
August 8th ED (#293 of 739 or 740)
88 E30 M3 100% OEM 73K Miles
02 E39 M5 Le Mans Blue 50K Miles
06 E46 M3 ZCP 58K Miles
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