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Old 11-25-2001, 03:09 PM   #2
Scooby Guru
Member#: 6551
Join Date: May 2001
Chapter/Region: MWSOC
Location: Carol Stream, IL
'01 GC8 Dinged STM
'09 Concours 14 ABS Black


WRONG!! they do not change the octane they merely add ethanol(grain alcohol) to the gas to make it want to burn. You don't lose any power, but it'll run like crap if it's warm out. You'll also notice worse gas mileage if the temp is about 50 degress.

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