Wondering how bad a mud terrain tire versus,all terrain tire, versus highway tire affects fuel mileage on a diesel super duty? Just bought a 12 powerstroke crew cab, and want to swap to a more aggresive tire and debating which tire to go with. My 2010 F150 5.4 mpg dropped about 2.5 when I went from stock tire up a size with a Nitto Trail Grappler MT. Can expect that same drop or less with my super duty? I will be stayin with the original size.
Thanks