What gas mileage are you guys getting with what gear ratio and tires?

I seem to be pulling 16 MPG with 4.11's and 235/75R/15's.

 

about the same with 3.55 and 31's in town. i have a bored out throttle body which made a huge difference. prior to the tb i was getting something like 12

 

i got 13.5 mpg on the hwy (interstate 81) i try to stay out of the gas as much as poss but i keep up with the flow. 4:10's and 35 x 1250's

i am thinking about going down to 33 x 1050's to help my mpg and stop the rubbing when flexing

 

did you get your TB bored at a machine shop or buy a aftermarket one? I have a 2.5L and want to swap the TB to one from a 4.0 but maybe is cheaper to just get mine bored? the jy wanted $50

 

around 16 in town on 32's at 28 PSI and 4.56's....
i drive it like i stole it tho....

 

I get somewhere around 15-16 as well.. putting gas maybe every 3-4 days and i feel up $55. Sucks.. but i found this fuel saver thing and i put it on my car... now i get a little more which helps.. try it..


http://www.performancechiptuning.com...aver+Module/3/

 

i got mine from strokedjeep.com and it was 90 plus shipping (9 bucks) and a core charge which i got back (50 bucks). dude, it makes such a huge difference. if you can swap yours with a 4.0 and it is a difference in size, try it out. if you like it, then you can get a bored one like the one i got and have an even bigger throttle bore.

 

5.38's and 39.5's
about 10-12 mpgs

 

3.55 gears P235/75 tires average 16MPG

 

Really?? You know that is a magnet you put on your fuel line right?

EDIT: nvm that is a page that sells an electric super charger

 

I just checked my 90 model with 235x15" tires and 3.55 gears for the 1st time and am happy with my 19 mpg. Mostly country road driving.
I was afraid it was not going to get very good being a 4x4 but I can live with this just fine
clint

 

did they tell how wide they machined the bore to?

 

235/75r15 and 3.55 and I get 17mpg with a mix of short interstate and street. I am going up to 31x1050r15 and 4.10 in a week or so. I am not sure if this will change my fuel mileage or not. Still debating the 4.10 or 4.56 though.

 

gravy what are you doing here? you only have part of a cherokee

 

Thanks a lot man I'll check them out! do you know what the bore was? x2