Quote:
Originally Posted by dlsipe1
When I first hooked up my Gryphon it was telling me that I was getting mileage in the low 20's avg. That was on the canned level 2 tune and quite a few pretty hard runs. Someone clued me in that the mpg will be off on the high side when first installed and will settle in with a little bit of time and driving. Sure enough it has - now avg 15 - 17 which is still a bit higher than the 14 - 16 I was getting before.
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That would make a little more sense but 30 still seems high? Maybe he only drives downhill bothways? 
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2005 XLT 5.4 Screw 4x4
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