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      04-23-2011, 03:21 AM   #12
smmmurf
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Drives: 2009 M3 Sedan 6MT
Join Date: Feb 2008
Location: Pleasanton, CA

iTrader: (7)

^youre welcome

i'm gonna keep blending to 94-95 octane, it is so. worth. it.

the engine benefits so much because it's 12:1 compression without direct injection
merc's are either lower compression and/or direct injection. audis are direct injection. porsches are direct injection now and run similar compression (11.5-12.5).
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M3 Sedan - AW/Black - 6MT - no moonroof - no folding seats - RAC RG63 - clear bra by Omega Werks