i wanna get some input from XJ owners on their mpg. i put a 4.5" lift and 31x10's on mine and my highway mpg went from 23 to about 16-17. now around town it's no better than 13-14. i just ordered the hypertech 3 for $380. i hope it wasn't money down the drain. wanna know what the other people are getting. i figured answering following would be a good base:
year:
mileage:
tire size:
driving style:
aftermarket:
city/highway ratio:

anybody???

Well I have a 91 with 3.5" lift and 30x9.5x15 tires and I seem to get around 12ish if im lucky highway and city. I wish I could get what you get. lol

I have a stock 98 with 117k Im getting 17 hwy, 14ish city

year: 2001
mileage: 126k
tire size: 225/75/15

city/highway ratio: 16/22

almost reminds me of the good ol' days.. haha

I get 12 MPG no matter how I drive it, so I'm usually driving it like I stole it. That includes 75% city and 25% highway driving.

6 inches of lift 33 12.50 tires 93' 4.0l with 194,000 i get 160 miles from full to empty

ok here ya go!
year:98
mileage:210k
tire size:235/75R15
driving style:moderate (its a stick and i shift at bout 2k)
aftermarket: nothin outside yet....
city/highway ratio: ?/22

Big tires and lift will kill MPG. Been there done that. One of lifes little lessons. Cut my old box bronco MPG in half or almost half.

mine is
year: 99
mileage: 156k
tires: 31x10.5
driving style: grandpa with vision and hearing problems and no rush
aftermarket: nothing (soon hypertech)
city highway ratio: 75/25
mpg: 15

2000
5.5"
31's
16/22 mpg

year: 1999

mileage: 160k

tire size: 255/15's

driving style: slightly younger old man.

(I do the speed limit but take off slow)

aftermarket:Nothing

city/highway ratio:NA/23 and I got 24-25 yesterday on the interstate.

year: 1995
mileage: 124k
tire size: 235/75/15
driving style: I think good, but wife thinks NOT
aftermarket: n/a
city/highway ratio: city?/ HW = 17mpg

I got a 360 in mine with 4:11 gears, I get about 10 mpgs no matter what.