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10-27-2008, 01:36 AM
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Audio Junky
Drives: 08 liftback Join Date: Oct 2008
Location: Spokane, Wa
Posts: 1,412
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won't hurt it at all... There is some speculation that if you reset the VVTI settings and consistently run 89octane that you might get slightly better gas milage.... but thats only the case if your engine has automatically retarded the timings due to engine knocking caused by 87octane gas.
I wouldn't worry about it too much, but would take them up for that offer as long as I had cash on me.
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