My cousin is looking to getting a F250 CC SB. His round trip is 60 miles mostly hwy to and from work. I'm trying to do research for him so I'm wondering All of u out there that have tuners and other motor mods what kinda MPG do u get on the hwy?

 

Even with a tuner, 14 is a rare high. Some people will get that, but expect closer to 10-12.

 

yep! but i dont run a eco tune i run a 87 performance tune.

highway i see 10-14 depending on alot of things. wind, hills..ect

 

Don't have a tuner on mine. I'm happy to get 10 in the summer with a 1500lb slide-in camper. Pulling my boat also, I get about 8.