Fuel Mileage
03-31-2011 | 09:49 PM
#16
Thread Starter
Newbie
Joined: Feb 2009
Posts: 20
Likes: 0
Year: 2000
Model: Cherokee
Engine: 4.0L
03-31-2011 | 10:13 PM
#17
Newbie
Joined: Jul 2010
Posts: 29
Likes: 0
From: S.D. and Tx.
Year: 99, 99, @2001
Model: Cherokee
Just reading all the BS about mileage. The only real way is to fill the tank the same all the time. Then make some notes about outside temps, wind direction, interstate driving, or whatever U R satisfied with the same resuts. Then average all the miles vs gallons. U will B surprised at the results. Also some of us are in love with our special brand of gasonline, and that should be considered also. Remember the old SHELL ad,,,,,,U can go farther SHELL w/platformate
with 152k miles on it.
04-01-2011 | 09:30 AM
#19
Seasoned Member
Joined: Apr 2010
Posts: 335
Likes: 0
Model: Cherokee
Just reading all the BS about mileage. The only real way is to fill the tank the same all the time. Then make some notes about outside temps, wind direction, interstate driving, or whatever U R satisfied with the same resuts. Then average all the miles vs gallons. U will B surprised at the results. Also some of us are in love with our special brand of gasonline, and that should be considered also. Remember the old SHELL ad,,,,,,U can go farther SHELL w/platformate
04-01-2011 | 10:35 AM
#20
Member
Joined: Feb 2011
Posts: 120
Likes: 0
From: Gainesville, TX
Year: 1998
Model: Cherokee
Engine: 4.0
I get 14 city 16 highway on 5 cylinders (first is dead due to a cracked head gasket, no I'm not driving it.)
I use Lucas fuel cleaner on ever tank. Really felt a difference since I got it.
I use Lucas fuel cleaner on ever tank. Really felt a difference since I got it.
04-03-2011 | 05:37 PM
#22
Senior Member
Joined: Feb 2009
Posts: 565
Likes: 0
From: Birmingham, Alabama
Model: Cherokee
of the 3 stock ones i have with 225 or 235 tires on them i get between high 19's hiway on average with all three..... 2 99 models and one 00 model.
Highest i have seen is 23.1 and that was only once.
04-04-2011 | 06:05 PM
#23
Junior Member
Joined: Feb 2011
Posts: 69
Likes: 1
From: illinois
Year: 01
Model: Cherokee
Engine: 4.0
I have a 01 with 69K and a scangauge 2 in it. Just got back from a round trip to Florida towing my 2000# boat. Got 21 heading down and yesterday with a hugh tailwind,got an incredible 25 all at 70 mph. Other than that p0303 code,and it's associated rough running, I'm happy.
04-09-2011 | 12:38 AM
#25
Thread Starter
Newbie
Joined: Feb 2009
Posts: 20
Likes: 0
Year: 2000
Model: Cherokee
Engine: 4.0L
04-09-2011 | 04:53 AM
#26
Registered Users
Joined: Sep 2010
Posts: 1,354
Likes: 1
From: Elkhart I.N.
Year: 1987
Model: Cherokee
Engine: 4.7L
don't replace all sensors. the front oxygen sensor is supposed to effect gas mileage. i replaced mine cuz it was original, along with major tune up and fuel filter. my gas mileage didn't improve, i get 13 in the city, but also get 20 on the hwy by driving right.
yours is low, the first step is state of tune. cap, rotor, plugs and wires, don't skip any of the items. i don't think your 2000 has a fuel filter serviceable, air filter was already stated. make sure 4 wd isn't staying in, which is kinda dumb to say, i'm sure you'd know that. tire pressures right. after that i'd do the oxygen sensor.
yours is low, the first step is state of tune. cap, rotor, plugs and wires, don't skip any of the items. i don't think your 2000 has a fuel filter serviceable, air filter was already stated. make sure 4 wd isn't staying in, which is kinda dumb to say, i'm sure you'd know that. tire pressures right. after that i'd do the oxygen sensor.
04-09-2011 | 05:56 AM
#27
Seasoned Member
Joined: Aug 2010
Posts: 358
Likes: 2
From: Illinois
Year: 1999
Model: Cherokee
Engine: 4.0
From what I've read on here and other Jeep sites, 22 is exceptional. I get about 19 on the highway and I think mine is better then average.
04-09-2011 | 01:23 PM
#28
Senior Member
Joined: Nov 2008
Posts: 587
Likes: 1
From: Tooele, UT
Year: 1995
Model: Grand Cherokee
Engine: 4.0
For getting the O2 sensor out, soak the exposed threads overnight with PB Blaster. NOT WD40. You need something that will penetrate into the threads. Not sure of the wrench size needed. But most parts stores will rent you the proper O2 sensor socket. As for the filter, there ought to be an external fuel filter near the fuel tank. Look under the Jeep and find the fuel lines from the tank. One is a return to the tank, the other should have a filter inline. If you are unlucky enough to have the internal tank filter only, then you'll need to drop the tank.
04-09-2011 | 01:27 PM
#29
Senior Member
Joined: Nov 2008
Posts: 587
Likes: 1
From: Tooele, UT
Year: 1995
Model: Grand Cherokee
Engine: 4.0
Then I have two exceptional Jeeps. My 95 ZJ with the 4.0, auto, 3.73s and 31s on 3" lift gets 18-21 avg depending on time of year. My daughter's 90 XJ with 4.0, auto, 3.55s and 235/75-15s and no lift gets 21-25 avg. You will get lower MPG in the winter than summer. Cold air is good for HP, not for MPG, and vice versa. A lot of MPG differences can be attributed to driving habits as well.
09-08-2014 | 10:44 PM
#30
Newbie
Joined: Mar 2011
Posts: 27
Likes: 0
From: Texas
Year: 1997
Model: Cherokee
Engine: 4.0
All gas is not equal, In the Houston area only in my experience with 2+yrs of gas milage recorded @ 2 tanks a week. I got the lowest gas milage by far from Chevron gas, it would drop by almost 2 mpg everytime I filled up there. After 4 tanks I have completely sworn off their gas except for in a extreme emergency.
Last edited by sumax; 09-08-2014 at 10:45 PM. Reason: spelling