this may have been done before but im curious to know this..
list the following:
year of jeep
miles on the odometer
your mpg
mods you have done (ie cold air, throttle body spacer, etc..)
what octane fuel used usually
other info (kind of oil used, fuel injector cleaners, spark plugs etc..)
i know jeeps are not made for mpg...but im curious..
cheers fellow jeepers...
list the following:
year of jeep
miles on the odometer
your mpg
mods you have done (ie cold air, throttle body spacer, etc..)
what octane fuel used usually
other info (kind of oil used, fuel injector cleaners, spark plugs etc..)
i know jeeps are not made for mpg...but im curious..
cheers fellow jeepers...
CF Veteran
1991 Limited, 70,000 miles, No mods, And on a good day, going downhill all the way (including tailwind), 17 mpg.
Junior Member
86 2.5 MJ 5-speed 200k 24mpg.
93 4.0 XJ Aw-4 150k 16mpg
98 4.0 XJ Aw-4 207k 16mpg
93 4.0 XJ Aw-4 35's locked lifted 170k 2gpm.
93 4.0 XJ Aw-4 150k 16mpg
98 4.0 XJ Aw-4 207k 16mpg
93 4.0 XJ Aw-4 35's locked lifted 170k 2gpm.
Junior Member
im working on converting my jeep to run off gas vapors, so I can use less gas. I may get 12mpg on the freeway in my 96. check it out on youtube its pretty cool stuff
Member
I have a 1999 XJ 4.0 H.O. AW4 with 208k Miles. I average around 19.5 using Regular 87 Octane Fuel, and standard oil and other chemicals. No mods...for now 

Member
year of jeep: 2000
miles on the odometer: 182k miles
your mpg: 14mpg city, 16-17mpg mixed, 19-20mpg highway
mods you have done (ie cold air, throttle body spacer, etc..): None
what octane fuel used usually: 87
other info (kind of oil used, fuel injector cleaners, spark plugs etc..): No idea. Whatever was cheap.
miles on the odometer: 182k miles
your mpg: 14mpg city, 16-17mpg mixed, 19-20mpg highway
mods you have done (ie cold air, throttle body spacer, etc..): None
what octane fuel used usually: 87
other info (kind of oil used, fuel injector cleaners, spark plugs etc..): No idea. Whatever was cheap.
Junior Member
1997
168K miles
16.5 mpg (pretty much split between highway and back roads)
Using airbox from an older XJ that pulls air from behind the drivers side headlight, K&N filter, bored TB, Ford injectors and Magnaflow muffler and hi-flow cat, a light foot
87 Octane (usually has ~10% ethanol)
5.5" lift & 33's
Also, even if you don't have great mileage, a wise man once told me, it's not about the miles per gallon, but the smiles per gallon, haha
168K miles
16.5 mpg (pretty much split between highway and back roads)
Using airbox from an older XJ that pulls air from behind the drivers side headlight, K&N filter, bored TB, Ford injectors and Magnaflow muffler and hi-flow cat, a light foot
87 Octane (usually has ~10% ethanol)
5.5" lift & 33's
Also, even if you don't have great mileage, a wise man once told me, it's not about the miles per gallon, but the smiles per gallon, haha

Senior Member
94xj 4.0 auto 188k run non ethenol 87 octane with a K&N filter and no cat flowmaster muffler with stock gears and 33s 3 inch lift I get around 15 to 18 long as I keep it under 2000 rpms, 2000 xj with 168k 4.0 3 inch and 31s and a K&N cone filter with no other mods running same fuel as my other it get 12 to 15 same driving except with AC on gets better with AC off
Senior Member
1992 Sport with 215K on it. 4.0L 5 speed. engine drive train all stock. 3.5 in lift with 235/75r15s. drove to California and back at 65mph getting 24 mpg on 87Oct
CF Veteran
95 2.5, 5 speed xj / 31's & stock 4.10's
140k
25-26 mpg highway, no clue of city mpg..
CAI with heat shield, IAT relocation, 4.0 TB
87 octane
Stranger mixture of 5w20, 15w50, and lucas at the moment../champion coppers.
140k
25-26 mpg highway, no clue of city mpg..
CAI with heat shield, IAT relocation, 4.0 TB
87 octane
Stranger mixture of 5w20, 15w50, and lucas at the moment../champion coppers.