What octane are you running?

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Nov 16, 2004 | 01:50 PM

I8URVTEC

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Joined: August 24, 2004

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I know it says we can run 87 octane in the GTs however, I was considering using 89 or higher anyway. Anyone else thinking the same thing or is it not worth it? :scratch:

Nov 16, 2004 | 02:02 PM

Kluski

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Joined: June 23, 2004

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From: Pittsburgh, PA

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Nov 16, 2004 | 02:08 PM

kevinb120

Team Mustang Source

Joined: January 29, 2004

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89 would be fine. 91+ would yield less gas mileage, with no benifits on a stock Mustang. Premium is cooler burning gas and the computer would adjust by spraying more.