Join Date: Dec 2010
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Officially Disappointed with the 6.4
Well, I took my 08 that I got a few months ago on it's first road trip...a whole 3 hr drive each way down to College Station, TX and back. Was hauling a 16' tandem trailer w/ one motorcycle on it. On the way down there, I fought a pretty bad crosswind and I got a whopping 11mpg and on the way back got a whole 13.4mpg with no wind. All highway, and I officially hit the lowest MPG's I've ever got in this truck so far.
Seriously, this is just disappointing. I put on a Mini-Maxx, DPF/cat delete, S&B intake, and nothing has improved. Love how my lie-o-meter says 20.6mpg, but it's far from that.
I've tried every different tune available, and have got nothing better than 14.2mpg and the higher the power level, the worse the mileage I get.
What chaps me even more is my buddy who has a 2010 F250 w/ 38's and no performance is getting 13.5mpg hand calculated!
Sorry, just had to rant. Starting to wish I had just bought a damn Dodge for cyring out loud....or at least a gasser for this piss-poor performance.