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      04-23-2011, 03:21 AM   #12
smmmurf
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Drives: E92 M3 DCT 353k+ miles
Join Date: Feb 2008
Location: Half Moon Bay, 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).
Appreciate 0