Fuel Economy with 33's??

[StupidHurts]

I have a 95 Ranger
4.0
Auto
4X4
With about 200K
Spectre Cold Air Intake
Custom "Cherry Bomb" Exhuast
Many New Parts and Sensors
Runs Pretty good for the high miles it has
Im Running 31's Right now with American Racings wheels
I lifted it a few inchs and now i want to run 33x12.50x15 BFG All Terrains
I got around 16-19 MPG In the summer with the 31's
During the winter i think im getting around 14-15 not 100% Sure though
I was wondering if anybody new how much my mileage would drop running the 33's
I do about 50/50 Highway and backwoods driving
If anybody runs 33s id like to know what kind of mileage you get..
Allthough this summer its going to get a Hydrogen Injection system which will help ALOT... My Dad and I Build Hydro generators in the summer if anyones Intereseted

 

[BlackBII]

What gearing do you have?

I bet you'll see a drop of maybe 1 mpg, if any at all. Depends on how you drive it and your gearing.

 

[StupidHurts]

I almost never take it passed 3k Rpm
Unless i fell that someone wants to run with the ole Ranger
It has 373 posi....

 

[dogboy]

I am getting 8mpg right now!! No, I am not joking, but I have serious issues with the truck too.

But here's what my numbers were back before I started having all the problems:

I do about 75% highway and 25%city, and I was getting about 16.5 mpg average with stock 235/75/15's on the truck, with 3.73 gears and an auto tranny.
Then when I got the 33's, my mileage went up to about 17.5mpg average (same trip everyday) AFTER the miles traveled was corrected for the bigger tires.

On purely highway it went from about 17 up to about 18.5, but city went from 16 down closer to 14.

EDIT: Just to let you know, a 13 y/o limited slip is worthless. They generally don't do much once they're a couple years old.