What kind of MPG are you getting
I am running 4.10 gears and 31x10 tires 4.0 motor
and I'm getting 12 to 13 mpg is this about right
should it be more like 15 to 18
just asking so I don't go looking for problems I don't have
or maybe I do if 12 to 13 is bad

 

stock, 5 speed (though I only use 4), 4x4, with 4.0... If I keep my speed to about 40-45 I can usually get 18-19.. This is mostly driven to and from work with stop light/signs every mile.

 

city i get around 18 all stock except for intake 4.0 auto

 

I get around 18-20 city/25-27 hwy.

 

i get around 14 city and 18 highway

 

What kind of setup do you have that your getting those numbers?

 

best I get is 13 city 16 hwy

so maybe I need to look at fuel pressur
have any of you guys changed injectors
I found lots of talk about it but no results

 

yeah i think you should be fetting more then that considering you have re-geared

 

Im getting aroung 18 mpg with 35's and 3.55 gears but it stays in drive not o/d due to not enough gear for o/d

 

That's on my lil stock '92. Just rollin' in 2WD with 38psi F/40psi R in summer.
I'll usually drop the air to around 34psi in winter and mileage stays the about the same until I throw it in 4WD.
Now, the '98 with the weird MAP sensor and the 31's on it gets about 12-15mpg city.

 

I avg around 16 mpg ...

 

How are you figuring those numbers? Have you put in a new speedo gear to compensate for the bigger tires?

 

i get 17 city/highway half and half dd to work each weak
18+ on highway last weekend with 4 large passangers and full cargo over 300 miles

93 XJ 4.0 5spd manual 171K miles 3" lift 31" tires
full size Brushguard on the front also.

 

i get about 20 city all stock

 

well dont feel bad it seems im getting crappy milage also, dont know why? maby 320000 mile has somthing to do with it.