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Old 07-02-2009, 04:58 PM
dlsipe1 dlsipe1 is offline
Senior Member
 
Join Date: Oct 2006
Location: MD
Vehicle: 2009 Ford F150
Posts: 213
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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