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      08-01-2011, 11:51 AM   #16
persian54
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Drives: SL550. Prev: E93 M3/335i/Z435i
Join Date: Jun 2009
Location: The Valley, SoCal

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I mixed 6 gallons of 100 and 6 gallons of 91; I wonder how much worse it would have been had I ran straight 91?
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