Well to be honest this is the number one complaint of many KJ'ers fortunately, there are some things you can do.
Basic Things:
1.) Check Air Pressure of tires, lower pressure = more rolling resistance.
2.) Check to make sure air filter is clean.
Mods:
1.) Cat Back Exhausts are known to help mpg by 1~2 mpg sometimes 3.
2.) Aftermarket Cold Air Intake or Drop in K&N filter
3.) High Flow Catalyic Converter
4.) Some people have mentioned with a throttle body spacer does help. (I can't verify this, because I don't have one)
5.) Synthetic Oil supposed to give maybe 1~2 mpg with a good filter.
6.) Some people mention better spark plugs can help
Things that make MPG go down.
1.) Lots of Lights / Baskets
2.) Bigger Tires
3.) Lift (I noticed after I did the clevis it dropped, but it really didn't change much after my lift-The slight tilt must add better air flow)
4.) Huge heavy sub boxes
5.) Full car load of people
6.) Under inflated tires
7.) Pulling a trailer
8.) Excess drain on alternator
9.) Air Conditioning
10.) Opening Windows
11.) Offroading
12.) Winter Gas
13.) Driving Hard - be nice to it and it will be a little nicer to your pocket.
14.) Excess weight in general - Skid Plates, Brushgaurds ...
15.) The computer gets mad if it doesn't go offroading every month, and deciedes to dump lots of fuel into the motor- So make sure you take her out every once and a while.
As I side not I found my Liberty gets the best MPG at 61 mph.
Bennett
Basic Things:
1.) Check Air Pressure of tires, lower pressure = more rolling resistance.
2.) Check to make sure air filter is clean.
Mods:
1.) Cat Back Exhausts are known to help mpg by 1~2 mpg sometimes 3.
2.) Aftermarket Cold Air Intake or Drop in K&N filter
3.) High Flow Catalyic Converter
4.) Some people have mentioned with a throttle body spacer does help. (I can't verify this, because I don't have one)
5.) Synthetic Oil supposed to give maybe 1~2 mpg with a good filter.
6.) Some people mention better spark plugs can help
Things that make MPG go down.
1.) Lots of Lights / Baskets
2.) Bigger Tires
3.) Lift (I noticed after I did the clevis it dropped, but it really didn't change much after my lift-The slight tilt must add better air flow)
4.) Huge heavy sub boxes
5.) Full car load of people
6.) Under inflated tires
7.) Pulling a trailer
8.) Excess drain on alternator
9.) Air Conditioning
10.) Opening Windows
11.) Offroading
12.) Winter Gas
13.) Driving Hard - be nice to it and it will be a little nicer to your pocket.
14.) Excess weight in general - Skid Plates, Brushgaurds ...
15.) The computer gets mad if it doesn't go offroading every month, and deciedes to dump lots of fuel into the motor- So make sure you take her out every once and a while.
As I side not I found my Liberty gets the best MPG at 61 mph.
Bennett
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