Does 10mpg sound about right with 35s and 3.73 gears

And that's with a new crate motor from ford

And I do have nitto mud grapplers

 

I have the same thing with 20' rims and trail grapplers and I get about 13-15mpg, so I would say thats prolly right or close to it.

 

That was all around town too

 

I'm at 12 mpg with a mix of highway and city miles. 33" tires. Maybe a little closer to 34". So I'm sure your fine in my books. A lot of people on here claim 18 mpg but I can't see that happening.

Make sure you calibrate your speedo for the tire size

 

I used to have 35s and aftermarket rims but they were so heavy. Stock rims are pretty light. Every 1 pound of rotating mass (rims and tires) is worth 5x that in the bed of the truck

 

3.73's with 305/55/20's

i get 13-20 mpg.

high 18's at 55 mph

have a tuner as well.. gryphon with tow tune

I've matched onboard "MPG" along with gryphon mpg

according to the dash i avg 14.5

I also drive my truck hard.

 

I've got 3.73s with 35s. I get 12 mpg. That's mixed highway and around town

 

That's with doing the math for the bigger tires and I'm about to take a 500 mile trip so I'll see how it does all highway

 

I run 295/65/20 Trail Grapples with 3:73 and get 13.5 around town. Edge can tune level 2

 

315/70/17 for me, re-geared to 4.56. So far, best mileage I've got is around 11 mpg with a Performance Economy Tune. I was at 10 before the regear and tune. That is mostly running around town. I haven't done a highway only trip to see what that mileage might be. I almost want to do one just to feel better about my city mileage...