gas mileage lifted xj
#1
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Model: Cherokee
gas mileage lifted xj
hey guys, just wanted to get an idea what kind of MPG others are getting with their lifted XJs, Id like to get some ideas from someone with a similar set up.....98' 130,000 3" 31x10.5. I have calculated two or three times, Im close to a oil change and im coming up with 12.5 mpg and getting 220mi a tank.
I was reading on another forum and came across a guy who had like 6" and 34s on a road trip and got 22mpg.
Im not sure how much this matters but I have 2 or 3 holes in my muffler...
Any ideas or info will be appreciated
thanks
I was reading on another forum and came across a guy who had like 6" and 34s on a road trip and got 22mpg.
Im not sure how much this matters but I have 2 or 3 holes in my muffler...
Any ideas or info will be appreciated
thanks
#2
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Year: 93
Model: Cherokee
Engine: 4.0
I got 3.5 inch lift with 31x10.5s and stock gears and I get around 13-14 mpg. I used to get 18. I hear regearing will help a lot but I'm broke lol
#5
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Year: 1999
Model: Cherokee
Engine: 4.0 I6
hey guys, just wanted to get an idea what kind of MPG others are getting with their lifted XJs, Id like to get some ideas from someone with a similar set up.....98' 130,000 3" 31x10.5. I have calculated two or three times, Im close to a oil change and im coming up with 12.5 mpg and getting 220mi a tank.
I was reading on another forum and came across a guy who had like 6" and 34s on a road trip and got 22mpg.
Im not sure how much this matters but I have 2 or 3 holes in my muffler...
Any ideas or info will be appreciated
thanks
I was reading on another forum and came across a guy who had like 6" and 34s on a road trip and got 22mpg.
Im not sure how much this matters but I have 2 or 3 holes in my muffler...
Any ideas or info will be appreciated
thanks
12 mpg is pretty bad on 31s.
here's a quick breakdown of mine
1. 1999 XJ auto, 4.5" lift, 31x10.5, aluminum wheels, 63mm tb, ev6 injectors, k&n filter, apn header, high flow cat, flowmaster 44, fresh tuneup, properly balanced and aired tires, 120lb speakerbox, about 70lb in tools and accessories... best mpg was 23.5 on all highway driving at steady 55mpg, no passengers, outside temperature right at 70 degrees, windows up, no AC running, fairly flat the whole trip, elevation about 600ft. above sea level, no rest stops for about 340 miles... average mpg is about 18-20 for 70highway/30city in summer, about 17-18 in winter, around 14mpg if driving city only.
2. 1997 5-speed, no lift, 30x9.5, aluminum wheels, ev6 injectors, bad cat. converter, sagged rear. best mpg 24 on a 100 mile highway trip, avg speed 60 mph, outside temp about 50deg., up and down terrain.... usual highway mpg is about 21-22. regular city mpg is 14, that's starting in 20 deg. weather, no warmup, 2 mile drive in city at 30-35mph average.
#6
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Model: Cherokee
Engine: l6 4.0
Originally Posted by Shift879
I got 3.5 inch lift with 31x10.5s and stock gears and I get around 13-14 mpg. I used to get 18. I hear regearing will help a lot but I'm broke lol
#7
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Year: 1992
Model: Cherokee
Engine: 4.0
IT really depends on the driving conditions. My 92 lifted 6.5" on 33" tires with 3.55 gears will get almost 20 on the highway, but then its down to 14 in the city. So yes if I regear it, it would do better in the city, but much worse on the highway. So the way I see it, it always measures up the same in the end. You need to gear it towards where it spends most its time driving.
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#8
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Year: 1996
Model: Cherokee
Engine: I6 4.0L HO, JBA headers, 99 intake, #703 injectors
im sittin on a 6.5" lift and only 31s getting about 240 to a tank. the jeep is fairly new to me but i betchea if you went in and cleaned the gunk out from your injectors, valves, tb, and your oil pan you would probably see significant gass milage and throttle responce improvements. im going to clean out everything when i come back from basic/techschool in the airforce. i probably have to drive across the US. when the time comes im going to post mpg in my build thread. just to keep track of it myself.