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Old 06-26-2008, 07:22 PM   #7
BimmerDude18
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Join Date: Nov 2004
Location: DeLand Florida
Posts: 2,910
My Ride: 1998 528i
Quote:
Originally Posted by OCswedishM3 View Post
What do you think if you only run 104octane? Will that increase the longevity of the motor?
You tell me, you've had your car boosted a lot longer than most.

I just know Saintly and the Australian guy who did the custom turbo both said there compression had started to fall showing ring failure.

My guess however would be octane of the fuel would just let you make more power because of more advanced ignition and have relatively little impact on the rings unless theres a bad tune on the car.
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1998 528i 5-speed Work in progress
1988 Toyota Pickup (4WD 5-speed) daily
2007 San Marino Blue 350z 6-speed sold
1996 328i 5-speed sold


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