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Old 05-06-2011, 02:00 AM
My Jeep: 2006 5.7L WK
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Re: Fuel economy 5.7 hemi

Originally Posted by dmsfun View Post
Does Superchips offer an 87 tune too ? are you running 93 or 89 on the 91 tune ?
Superchipís has the settings Economy, 87 and 91. I'm filling up with premium which is 93 octane here and running the 91 tune because that's best available setting. It really drives great now. The throttle response is so much better and the transmission shift points make better use of all that power.

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