Forum Discussion
el_Rojo
Sep 10, 2013Explorer
Speed and wind are the biggest factors in fuel mileage. You can't change the wind but you can slow down. I have a 2010 F350 DRW with a 6.4. Engine has lots of power to pull mountain passes. We took a trip to CO this summer and avg 8 mpg, I was driving 70 mph. I understand the new 6.7 has good power also but has a lot better fuel mileage. If you want mileage get a newer truck and drive 62 mph.
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