I believe some of your taxi's run it... Was over in LA last year and the taxi that picked us up from the airport had a huge LPG tank in the boot.

 

92 on 31's and 3:55 gears. Just over 100K on the motor and I get 16 mpg no matter how I drive it.

 

My last tank was 19.6 MPG, about 85% highway. I try to only use Shell gasoline or other top tier blends. 94 Cherokee, all stock.

 

wow thats great.. I did this today and it worked!! Adjust your Kickdown cable on teh throttle body!

https://www.cherokeeforum.com/f2/free-quick-fix-41821/

 

99 xj 4.5 lift with 1.75 spacers 33 inch tsl radial and no pump gas runs on
propane geetting around 11 to 12 mpg city havent been on hwy yet

 

I get about 16 mpg in my 99 xj with 145423 miles.

 

stock 91xj 4.0,255/70/16 and makin 18city,20 highway

 

1990, 4.0 liter, 5 speed, roof rack, 2"lift, 235/75/15 Michelen XT 232,xxx miles
City:16.2 MPG Average
Highway:18 MPG

With bad O2 sensor: 12.7 MPG Average

All average mileages are based on over 4000 miles of driving. Highway mileage is based on 3 fill-ups.

 

Let's see last I checked I'm getting neat 21 MPG highway but only near 15 MPG city in my 1994 XJ with about 210,000 miles on it. Using a 99+ intake manifold and Ford #19 fuel injectors.

 

stock 98 cherokee 235/75/15 automatic and drive like Grandpa, all city avg 11-13mpg. just did tune-up so hoping for alittle better, also run straight gas no ethonal.

 

2000 Cherokee Sport, right at 105,000 miles on it, and I'm getting about 18 to 18.5 mpg back and forth to work and about 19.5 mpg on a road trip (back full of stuff and more stuff in the back seat - we never seem to go anywhere unless we take two times as much stuff as we're likely to need.)

 

99 cherokee sport. 4.5 inch lift. 32" muds. Roof rack. stinger back bumber. stinger front bumber. 9 mpg in the city. I have a throttle body spacer and a afe intake but i drive her really hard.

 

My '99 with the 4.0, AW4 and 3:55 axles with stock 225/75/15's and a 2" lift gets just under 17 mpg with a mixture of city anf highway driving.

I've only owned it a couple months and have put less than 2500 miles on it. I installed the Accel tune up kit and changed all fluids. Less than 1000 miles ago, I installed 784 injectors. It seems to still be running a bit rich. I plan to change the front O2 sensor soon and see if that makes a difference.

I just put a bottle of Auto RX in it about 500 miles ago. This might help with fuel economy, I hope. I'd like to see more like 20 mpg with a little better on the highway.

 

My old 4.0 87 Laredo got 20 mpg and I was average on the throttle -not pushing it but not driving like grandma- plus I do mostly highway miles where I'm from, but my 86 Wagoneer with the 2.8.

I hate the 2.8. I don't know why They ever used that engine. Rated at 95 hp and 16 mpg, whereas the 2.5 Iron Duke got 20ish mpg for the same power... I went through >$100 a week in gas with that Wagoneer.

Now, I got another 87 4.0 and I'm expecting the same, plus I'm upgrading it with EV6 fuel injectors and everything I can to get better mpg.

 

'97 XJ Sport 4.0 Totally Stock, 20mpg hwy, 14-15 towing 3000 lb boat. Bought new, current mileage 241,000!