I have a 5 speed & 4:10's and running 40 miles back & forth to work, 65 mph hwy, plus a little city, I'll average 16.5-16.9 mpg. I just can't break that 17 nut. But pulling my 5th whl. drops me to 12.5. Even my 14' utility (quad) trailer will drop it to 15 mpg.
That's on dino fuel, I haven't...