tune!!!! quick reply Please!!!! - Ford Mustang Forum
 
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post #1 of 6 (permalink) Old 03-30-2012 Thread Starter
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tune!!!! quick reply Please!!!!

Can i run 89 octane gas in my car with a 87 octane (bama) tune. basicaly i want to know is if you can run higher octane gas with lower octane tune??????????

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post #2 of 6 (permalink) Old 03-30-2012
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Absolutely you can!


Ex Ford tech for 17 years, 1987 Mustang GT project car. 2010 Flex with Ecoboost
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post #3 of 6 (permalink) Old 03-30-2012 Thread Starter
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just not the other way right?????
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post #4 of 6 (permalink) Old 03-30-2012
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87 octang with tune.

Is there any benfit from using a higher octane gas with an 87 octane tune?
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post #5 of 6 (permalink) Old 03-30-2012
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Quote:
Originally Posted by egvarley View Post
Is there any benfit from using a higher octane gas with an 87 octane tune?
None what so ever. If you want to run 89 why not just get a tune for 89?

Quote:
Originally Posted by whiteboy05 View Post
just not the other way right?????
Absolutely. Using a lower than required octane can damage your engine

XCharger HiPo 2.8, JBA shorty headers, Zabteck ported & polished TB, Mac ProChamber, Flowmaster American Thunders, GT500 shocks/struts/strut mounts, GT500 front LCA's, Shaftmasters 4" aluminum d/s
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post #6 of 6 (permalink) Old 03-30-2012 Thread Starter
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idk.... i got my canned tunes from bama and i put 91 instead of 89 like a retard. So i filled up with 89 thinking i had a 89 tune. you cant even buy 91 in Houston. ahhhhhhh!!!!!!! o well ill run the 87 tune intill i get the right one.



Ive got a one long ass night ahead of me. Im installing the rear lower & upper control arms, Sct tuner, X-pipe, cold air kit, and zex nitrous kit, bottle heater and perssure gauge(yes i know you cant run nitrous on 89 octane. I am still waiting on that tune to come in) all this to a stock 2006 gt Wish me luck guy!!
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