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Power Strokes
2017+ 6.7 Aluminum Super Duty
Mileage on newer 6.7s...
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[QUOTE="TrickTruck, post: 1557293, member: 6044"] Rolling heavy (25klbs) I get just a little better than 10mpg towing this rig at 70-75mph. Lock it in 5th and let her eat. Empty at 80mph it used to get 16mpg on 37x12.5R22 Ridge Grapplers. I just upgraded to the same tire in a 13.5 wide and mileage dropped to 14mpg empty. Haven't towed with it yet. My lie-o-meter is slightly optimistic when I hand calc, but when I add 5% for the oversize tires the meter becomes pretty accurate. Chaos tunes. I would really like to try Proven tunes. Dropping speed into the 60s makes a HUGE difference in mpg. Truck is aerodynamic like a brick. If traffic is breaking the wind (like with lots of Semis in front of me), and speeds are lower, 55-60 it'll see 18-19mpg. This so rarely happens IDK if it's even worth mentioning. Luv this truck, but with the current price of fuel closing in on $4/gal due to Chyna Joe Dip$hit and his cronies and I may have to leave ole piglet here in the garage :(. I would much rather drive my truck than wifey's Expy. The Expy gets 18mpg at highway speeds. [ATTACH type="full"]116217[/ATTACH] [/QUOTE]
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2017+ 6.7 Aluminum Super Duty
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