Originally Posted by frdtrckmnrich
My 08 F350 4x4 dually w/4.10's gets an average 11.6. It is a noticeable difference from my old 85 6.9 getting 15. But it is a pulling machine! It drives the same loaded or unloaded.
Milage is my only complaint about the truck.
all im gonna say, is next time you see me, i am gonna make you drive mine. it will knock your socks off
Originally Posted by special k
don't plan on getting in the upper teens as far as mileage. a stock 4x2 f250 with a 6.4 barely gets 9-10. and as far as that programmer, don't plan on getting any warranty work being done on the drive train. i worked at a ford dealer, and we had a 6.4 f350 with a different tip on the exhaust and had to decline the warranty work. so just don't break anything and expect it to be covered under warranty.
wont be a problem, i have taken care of this already.
and today on the highway i was at 15.4!!!