Sep 16, 2015, 06:27 PM
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- Jeep Cherokee 1984-2001: How to Maximize Your MPG
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Whats your MPG, Year and Make? Be truthful! We need better MPG's!
Seasoned Member
Joined: Oct 2010
Posts: 272
Likes: 0
From: East Lake, NC
Year: 1987
Model: Cherokee
Engine: 4.0
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.
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.
CF Veteran
Joined: Nov 2009
Posts: 1,262
Likes: 0
From: Conroe, Texas
Year: 1997
Model: Cherokee
Engine: I6
97 4.0, 5 in of lift, 31's, Automatic np242, rear axle chrysler 8.25, 3.55 gears, dana 30 front, apn header, 2.5 exhaust pipe, high flow cat, flowmaster super 40, CAI/Snorkel, 63mm Throttle body, lockers front and rear Aussie rear, ECTED front, front bumper with winch, rear bumper with tire carrier, roof rack. T-case skid, rear end warn skids. ALOT OF WEIGHT!!
Getting consistently 17.8 mpg. If i'm not being a leadfoot. I'm happy with it
Getting consistently 17.8 mpg. If i'm not being a leadfoot. I'm happy with it
Newbie
Joined: Nov 2010
Posts: 10
Likes: 0
From: Missouri
Year: 2000
Model: Cherokee
Engine: 4.0
So someone give me the lowdown on how to increase my MPG, I would like to get more than 10 mpg while delivering mail, even when I am not delivering mail my tops is 15 mpg.
Junior Member
Joined: Nov 2010
Posts: 86
Likes: 0
From: middle tn
Year: 2000
Model: Cherokee
Engine: 4.0ho
2000 sport 4x4 4.0 and a auto its got 3.55 gears and i consistantly get 21mpgs but i drive worse than a grandma lol ive found the key to geting good milage out of my xj is to take off as easy as possible i drive mainly country roads and if im hard on it and pass alot of people my mpgs drop to about 17mpgs and mines got 125K on it
Seasoned Member
Joined: May 2010
Posts: 406
Likes: 0
From: Suffolk long island
Year: 1994
Model: Cherokee
Engine: 4.0 L I6
Seasoned Member
Joined: Aug 2010
Posts: 320
Likes: 1
From: Calgary, Alberta
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0L
I don't know why you guys get such bad gas mileage... I get at least 20 a tank and I don't exactly drive conservatively... are your injectors clean? your compression good? clean air filter? I don't do that much to my Jeep for better gas mileage the only difference I think is that my Jeep has always been maintained meticulously by me and the owner before me.
P.S- I got worse gas mileage with K&N filter... big time. Maybe that's it?
P.S- I got worse gas mileage with K&N filter... big time. Maybe that's it?
Seasoned Member
Joined: Jun 2010
Posts: 448
Likes: 0
From: Charleston, SC
Year: 1990 - 2000
Model: Cherokee
Engine: 4.0
Google "hypermilling". It helps. I coast and slow don early for red lights and try to keep rolling until the light changes. Any energy (momentum) saved is that much less I have to use to get rolling again. I also shut my engine off for long red lights.
CF Veteran
Joined: Oct 2010
Posts: 2,150
Likes: 12
From: Ontario, Canada
Year: 1989 Laredo
Model: Cherokee
Engine: 4.0 L 6 Renix
miles
miles to go before I sleep......
474000+ km on 89 Laredo 4.0L, 3.54 gears, powertrax locked D30 / D35, 31x10.5-15 G Y Territory, 3.5 Lift, Drivetrain armor, tools, jack etc. All fluid tip top always. Run regular gas, 1400km weekly all weather all terrain. 22 mpg Canadian, 17.6 mpg USA
474000+ km on 89 Laredo 4.0L, 3.54 gears, powertrax locked D30 / D35, 31x10.5-15 G Y Territory, 3.5 Lift, Drivetrain armor, tools, jack etc. All fluid tip top always. Run regular gas, 1400km weekly all weather all terrain. 22 mpg Canadian, 17.6 mpg USA
Seasoned Member
Joined: Aug 2010
Posts: 320
Likes: 1
From: Calgary, Alberta
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0L
miles to go before I sleep......
474000+ km on 89 Laredo 4.0L, 3.54 gears, powertrax locked D30 / D35, 31x10.5-15 G Y Territory, 3.5 Lift, Drivetrain armor, tools, jack etc. All fluid tip top always. Run regular gas, 1400km weekly all weather all terrain. 22 mpg Canadian, 17.6 mpg USA
474000+ km on 89 Laredo 4.0L, 3.54 gears, powertrax locked D30 / D35, 31x10.5-15 G Y Territory, 3.5 Lift, Drivetrain armor, tools, jack etc. All fluid tip top always. Run regular gas, 1400km weekly all weather all terrain. 22 mpg Canadian, 17.6 mpg USA
CF Veteran
Joined: Oct 2008
Posts: 2,127
Likes: 2
From: Hell, CA
Year: 1989
Model: Cherokee
Engine: 4.0L I6
City I usually get 16ish, and highway overall usually 20-23 depending on where and time of year.
Stock 1989XJ 242ci/AW4/Np231/3.55gears Amsoil Full syn in all, 235s, 3" lift
Fill the tank, drive it til its mostly empty. Fill up and record your miles traveled and divide by number of gallons. If you have a gps and can verify the mileage is correct or adjusted. You will want to do this with at least 3-4 tanks to get an accurate reading.
Stock 1989XJ 242ci/AW4/Np231/3.55gears Amsoil Full syn in all, 235s, 3" lift
Fill the tank, drive it til its mostly empty. Fill up and record your miles traveled and divide by number of gallons. If you have a gps and can verify the mileage is correct or adjusted. You will want to do this with at least 3-4 tanks to get an accurate reading.
CF Veteran
Joined: Nov 2009
Posts: 1,262
Likes: 0
From: Conroe, Texas
Year: 1997
Model: Cherokee
Engine: I6
shut your engine off for long red lights? Doesn't it take more fuel to get the car started than to let it idle for a few minutes.