Horrible mileage
#1
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Year: 98
Model: Cherokee
Engine: 4.0
Horrible mileage
Ok, new guy here. I recently purchased my 98 xj. Lifted 4.5-5 on 33's all stock motor, tranny, and gears.
I filled it up the other day for $60. So far I have driven 80-90 miles and half used 1/2 tank of gas. Didn't buy it for economy but this is extreme.
Any suggestions for improvement?
I filled it up the other day for $60. So far I have driven 80-90 miles and half used 1/2 tank of gas. Didn't buy it for economy but this is extreme.
Any suggestions for improvement?
#2
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Location: Nazareth/Pen Argyl, Pennsylvania
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Year: 1989
Model: Cherokee
Engine: 4.0L 242ci I6
Re-gear it. Also, the bigger tires will make the mileage off if the speedo gear wasn't changed. I average about 13mpg stock. You could see about 8-10 with 33s on.
#3
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Year: 1989
Model: Cherokee
Engine: 4.0L 242ci I6
Don't forget, gas prices are going up and gas is getting crappier as we speak. Mileage for many cars is starting to tank. A full tune up would also help though.
#5
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Year: 1997
Model: Cherokee
Engine: 4.0L
At least attempt to do a search. There is a very recent thread with exactly the same vehicle specs asking the exact same question. Search for the same title you used.
#6
01' Stock gears engine etc on 31's and I get 15-16 around town. My gauge is around half when I hit about 100 miles on a fill up. I get 250 miles to a tank if I hold out till the last second and put 17.5 gallons in.
Fill up with half a tank or more and you pick up a MPG give or take.
Fill up with half a tank or more and you pick up a MPG give or take.
#7
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Year: 98
Model: Cherokee
Engine: 4.0
I also have a set of 31's that I think I'm gonna put on today to see if I notice a difference. All in all the jeep runs good. Rides like a brick though. Haha. Might try new plugs and what not today. Got to wait for the temp to get up.
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#8
Seasoned Member
Remember just changing tire sizes will make it look like your gas mileage improves because the tire diameter changes. Larger diameter tires turn slower at the same speed than a smaller diameter tire. It'll look like your getting a couple miles more to the gallon when in fact you're getting almost exactly the same mileage. But big tires do weigh more and create more wind resistance.
My '98 XJ is on 33s but the differential gears were changed to 4.56. The speedometer now reads correctly and the odometer now matches mile markers on long interstate highway trips. I check mpg every tank and consistently get 14-16 mpg.
hth, Doug
Last edited by NPx; 04-07-2012 at 08:27 AM.
#9
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Year: 1998 Sport
Model: Cherokee
Engine: 4.0
Ok, new guy here. I recently purchased my 98 xj. Lifted 4.5-5 on 33's all stock motor, tranny, and gears.
I filled it up the other day for $60. So far I have driven 80-90 miles and half used 1/2 tank of gas. Didn't buy it for economy but this is extreme.
Any suggestions for improvement?
I filled it up the other day for $60. So far I have driven 80-90 miles and half used 1/2 tank of gas. Didn't buy it for economy but this is extreme.
Any suggestions for improvement?
WOW! $60 to fill up???
I just filled mine up and it cost me $80 here in south TX. I can get anywhere from 275-300 miles on a tank of gas.
#13
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Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Originally Posted by TheCK4x4
I'm about 11-12 mpg and I have 4.5 lift and 33s. Highway I get about 14-16
#14
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Year: 1993
Model: Cherokee
Engine: l6
Originally Posted by stev-o
Seriously it's killing my wallet
#15
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Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Originally Posted by TheCK4x4
Re gear it. Spend money to save money! Or get smaller tires. Plus there are a lot of little things you can do to increase it