Thread: MPG's with 87 economy Tune ?'s
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Old Thu, May 7th, 2009, 05:34 PM
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Just from experience use pencil, calculator, and log book. Gryphon guage pid avg shows higher and my oem dash gauge shows lower. About 16.5-17.5 mpg on 93 canned perf tune. Specs in my sig below.

BTW you running canned tunes or customs?
If you are running canned level 2 is the best for you with the cai until customs arrive. Do not run it at WOT or aggresively. Take the cai off put oem set up back on and run level 3 canned 93 perf if you want to go "hot rod mode".

Also anything over 70 mph kills the mpg in these trucks.
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