Better gas mileage
06-23-2014, 12:00 PM
#5
Here's what you should do. Never, ever drive it without hauling a trailer, carrying a cargo or in 4WD (traction conditions warranted). That way when you get mileage in the teens it won't seem so bad because you're working it like an XJ was meant to be used. Then you can get a bumper sticker that says "my other car is a Prius, that's why I'm driving this!"
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06-23-2014, 05:31 PM
#10
Senior Member
I have a 96 4x4 with 33's and get 16 almost 17. It fluctuates for alot of reasons why some of us get more than others. A buddy has a 99 and gets near 20 with 31's and 4x4.
Dont buy a throttle body spacer, drive it like a grandpa, do your regular maintenance - oil changes, tire pressure, clean air filter, spark plugs, cap and rotor and wires, keeping the weight out of it, drive stock tires. There are others you can do as well!
Now try to keep it cool in the summer months. XJ's are notorious for running hot. Good luck!
Dont buy a throttle body spacer, drive it like a grandpa, do your regular maintenance - oil changes, tire pressure, clean air filter, spark plugs, cap and rotor and wires, keeping the weight out of it, drive stock tires. There are others you can do as well!
Now try to keep it cool in the summer months. XJ's are notorious for running hot. Good luck!
06-23-2014, 11:30 PM
#11
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Year: 1996
Model: Cherokee
Engine: 4.0
If that's mixed that's just what your going to get. You might squeeze a MPG or 2 by going through the exhaust and intake but your talking a lot of money and time for something that isn't a sure thing and well be marginal at best. Keep pressures good, keep up on maintenance, drive like an old man.
06-24-2014, 11:36 PM
#12
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Model: Cherokee
One thing would be DO NOT CHANGE AIR FILTER. You may think I am crazy, but any engine with a MAF sensor will get better gas mileage with a dirty filter. With a dirty filter, it increases the vacuum in your intake. With this, the fuel goes in better and mor evenly. You will actually see an mpg drop when you change it. But of course, you will still have to change it since paper falls apart.
06-25-2014, 12:08 AM
#13
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Year: 2000
Model: Cherokee
Engine: 4.0
One thing would be DO NOT CHANGE AIR FILTER. You may think I am crazy, but any engine with a MAF sensor will get better gas mileage with a dirty filter. With a dirty filter, it increases the vacuum in your intake. With this, the fuel goes in better and mor evenly. You will actually see an mpg drop when you change it. But of course, you will still have to change it since paper falls apart.
06-25-2014, 06:33 AM
#14
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Year: 1996
Model: Cherokee
Engine: 4.0
One thing would be DO NOT CHANGE AIR FILTER. You may think I am crazy, but any engine with a MAF sensor will get better gas mileage with a dirty filter. With a dirty filter, it increases the vacuum in your intake. With this, the fuel goes in better and mor evenly. You will actually see an mpg drop when you change it. But of course, you will still have to change it since paper falls apart.
06-25-2014, 06:43 AM
#15
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Year: 1999
Engine: 4.0
One thing would be DO NOT CHANGE AIR FILTER. You may think I am crazy, but any engine with a MAF sensor will get better gas mileage with a dirty filter. With a dirty filter, it increases the vacuum in your intake. With this, the fuel goes in better and mor evenly. You will actually see an mpg drop when you change it. But of course, you will still have to change it since paper falls apart.