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If you are running the stock tune then you can run any octane 87 or higher--the benefits will be nothing.
There could be some loss of power with 93+ octane (increasing as the octane rating increases) as the stock timing will light it up a bit too late for optimal combustion...
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-cliff knight- My Mustang
2003 GT, UPR X, Magnaflow, 180° stat,
PP 70mm TB & plenum, Sniper tuned
3.73s, 262 rwHP/305 ft.lb.
Multi-fuel: burns gas and rubber...
so then run 93, Even if you could pick up 50whp on 110 octane(DISCLAMER: NOT SAYING YOU CAN!) whats the point? Unless you put 110 in your car every time you drive it i don't see any point to that.
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Fastest Closet on MustangForums.
I bought a goldfish, named it after my ex-girlfriend, and let it die. It's really the little things in life.
Information that would have added value to your first post...
Nonetheless, and knowing that, there's no advantage to your running anything over 93 octane, and if you were to run 98+ octane you might lose power for the reason stated above...
__________________
-cliff knight- My Mustang
2003 GT, UPR X, Magnaflow, 180° stat,
PP 70mm TB & plenum, Sniper tuned
3.73s, 262 rwHP/305 ft.lb.
Multi-fuel: burns gas and rubber...
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fuel octane
