Report your MPG

[Viking445]

What's interesting is that after switching over to larger 285/70r17 Falken Rubitreks versus the old 265 /65r17 Grabbers, is that my mph went up. From 18 to 20 now is my avg. I think there is less road resistance. I even went with wider 9" rims.

Oh ya my speedo was off by 2-3mph so i corrected it with my Ford Performance tuner. The number of revolutions per mile is listed on tirerack. You have to input that.

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[Woodman_73]

Oh ya my speedo was off by 2-3mph so i corrected it with my Ford Performance tuner. The number of revolutions per mile is listed on tirerack. You have to input that

Oh yeah, I dialed it in with GPS all the way up to 75 mph. Which then makes me wonder how off was it from the factory.