What are you guys getting for mpg? Before i would get around 15-16 in town and 18-20 on the highway, well now after the install i get maybe 12-13 in town and about 14 on the highway? Wtf? It really gets **** for mileage and i have 4.10 gears, auto trans, light on the gas pedal all the time. I figured i would at least be getting 16-17 on the open roads.

 

Well then you had the wrong expectations. If you would have read here (or anywhere), a lifted truck with bigger heavier tires is going to get worse mileage.
I had a 4.0L ranger with 3.73s and 33s, 14mpg.
4.0L sport trac with 4.10s and 33s, 14mpg.
4.0L sport trac with 4.88s and 33s, 14mpg.

You MAY get closer to stock mileage with 4.56 gears. It will be a lot better for performance, but it would take forever to make up for the 2mpg you will gain back.

Again, really, look around at mileage for lifted rangers. There are some factors you may not be figuring either. You need to correct the speedometer, or apply a correction when figuring the mileage as the tire diameter makes the speedometer/odometer inaccurate. Also you are probably running winterized gas. I still wouldn't expect better than 14mpg with that setup. Don't lift a truck and expect good mileage.

 

you might need to check your odometer to an actual mile. with 35's 1 mile on the road is only 0.85 mile on my odometer. So I usually just add 1 mile to every 10 miles I drive.

I get about 13-14 double lifted with 35's and 4.10's

 

Im waiting to buy a tuner to correct my speedo so everything will be correct, i never expect great mileage but i didnt expect almost 6mpg less. Its not just 2mpg if it were i could care less im
Driving the same road i did before and my scan gauge would read 16 or more, now it wont even clear 13.

 

Where are you located? Is it getting colder?

 

In wa state, i think last year if i remember right the gas sucked and recently ive found a few conocos that sell ethanol free gas.