MPG/lift question

[dmcclurg28]

Just wondering if 11.8 mpg is normal for an 03 F-250 6.0l riding on 35" general grabbers. As far as I can tell the engine is stock aside from the cold air intake. If so would re-gearing improve my mileage or would this just raise my rpm's on the freeway reducing my mileage? Also I was wondering how to tell how much of a lift is on the truck. It doest seem to be as tall as my friends truck which has a 6" lift but its definately not just a leveling kit. Thanks!

[SandawgK5]

Measure from the center of the hub to the top of the wheel arch and compare to the same measurement on your friends truck. That mileage is pretty close to what I get around town with mine wiht 4.5", 35s and tuned.

Dik

[macoyle]

wow thats kinda bad, depending on how you drive of course. I baby mine 95% of the time and get 13.5-14 in town and get about 18.5 on the highway going about 70-75 all hand calculated

[dmcclurg28]

I have a 45 min drive to work everyday so Im definately easy with the gas and on the freeway I drive 65mph and thats how I've been getting 11.8. When I do 70-75 mph my mileage drops about 1 mpg. I'm bring to figure out if gearing will help out at all.

[macoyle]

is that the computer or hand calculated

[dmcclurg28]

Hand calculated. The best I ever got was 12.9 mpg. From most of the reading on these post it would seem my highway mpg should go up if not stay the same as stock. Starting to wonder if I have an issue with the motor.

[stroker007]

thats about right. with my 4 inch lift and 35s i get around 13 some times higher sometimes lower depending on how i drive.

[brad189]

heck i was getting between 13-14 mpg riding down the highway at about 55-60 and im on 40s.. i do have the looney tune though..

[Super Diesel]

I get about 12 in the city. So I'd say you're normal.

[stroker007]

yea thats my city driving mpg. i dont ever drive on the highway so idk what that is. but if thats your city driving then yes your about right.