Getting the best gas mileage
08-31-2011, 12:59 PM
#1
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Getting the best gas mileage
This might be a completely pointless thread. But I'm interested in making my XJ as efficient as it can be. Was hopping some of you could throw in some ideals.
So far I've got gearing to appropriate sized tires.
*tire pressure
*clean air filter
*clean injectors and fuel lines & fuel filter
*regular maintenance stuff ie diff fluid, motor oil etc.
Feel free and add to it.
So far I've got gearing to appropriate sized tires.
*tire pressure
*clean air filter
*clean injectors and fuel lines & fuel filter
*regular maintenance stuff ie diff fluid, motor oil etc.
Feel free and add to it.
08-31-2011, 02:14 PM
#3
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Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
Stickers 
and lose extra weight from the jeep. Weight like tools, tires, etc. if its just a little bit of stuff it probably wont matter but a ton will make a difference. This is very hypocritical of me lol, my rear storage space is a 12 sub box and a custom built drawer system with all my stuff in it which weighs about 70 lbs total haha
and lose extra weight from the jeep. Weight like tools, tires, etc. if its just a little bit of stuff it probably wont matter but a ton will make a difference. This is very hypocritical of me lol, my rear storage space is a 12 sub box and a custom built drawer system with all my stuff in it which weighs about 70 lbs total haha
08-31-2011, 02:20 PM
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Year: 2001
Model: Cherokee
Engine: 4.0
The most recent 4x4 Garage magazine has an article of how they improve 2-3 mpg on a Cherokee by installing Rock it hardware - Intake, TB & Spacer, Map Sensor and Cat Back exhaust. But, I don't think they were running 33's on that rig.
08-31-2011, 03:14 PM
#5
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60-65mph max, new o2 sensor (upstream), remove roof racks, that's about it.
You'll never get great gas mileage with your 33" M/T tires and lift. That's just the way it is.
You'll never get great gas mileage with your 33" M/T tires and lift. That's just the way it is.
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08-31-2011, 03:58 PM
#8
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Year: 1999
Model: Cherokee
Engine: 4.0L
Modest, but keep it clean and waxed.
My 99 L6 gets great mileage, the computer shows it's avg at 20.2 MPG with mixed driving but mostly city. Over the weekend I put it on instant for a highway trip and on the flat it was reading 30-45 MPG, downhill was 55-99 and uphill was 8-15 MPG. I absolutely LOVE this SUV!!!!
My 99 L6 gets great mileage, the computer shows it's avg at 20.2 MPG with mixed driving but mostly city. Over the weekend I put it on instant for a highway trip and on the flat it was reading 30-45 MPG, downhill was 55-99 and uphill was 8-15 MPG. I absolutely LOVE this SUV!!!!
08-31-2011, 09:21 PM
#9
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Year: 1998
Model: Cherokee
Engine: 4.0
I dont know why, but I get TERRIBLE gas mileage like EPIC bad lol. I go from my house to university which is basically highway for 20 min and it drops like half a quart (and by that i mean the small lines on the gauge in the 98 xj, by bad if that isnt the name :P ) so yeah it sucks. I think its worse than a hummer
08-31-2011, 09:30 PM
#10
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Year: 1999
Model: Cherokee
Engine: 4.0 I6
It's not possible to get a steady gas mileage from what I've seen. I get 14 city 25 mph, 18 backroad 50 mph, 20 highway 55-60 mph, 23 one time only non stop trip from Ft. Indiantown Gap, PA to Lynchburg, VA 55 mph steady.
As mentioned before, I wouldn't count on good mpg with 33s mainly because the tire size gearing might not be as appropriate as u think. With 33s u should have somewhat decent highway, but horrible city mpg. I would definitely recommend a stroker or a diesel for that size tires. I don't think any bolt on is gonna do the trick.
But, my opinion stinks about as much as anybody else's.
As mentioned before, I wouldn't count on good mpg with 33s mainly because the tire size gearing might not be as appropriate as u think. With 33s u should have somewhat decent highway, but horrible city mpg. I would definitely recommend a stroker or a diesel for that size tires. I don't think any bolt on is gonna do the trick.
But, my opinion stinks about as much as anybody else's.
08-31-2011, 11:09 PM
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Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
It's not possible to get a steady gas mileage from what I've seen. I get 14 city 25 mph, 18 backroad 50 mph, 20 highway 55-60 mph, 23 one time only non stop trip from Ft. Indiantown Gap, PA to Lynchburg, VA 55 mph steady.
As mentioned before, I wouldn't count on good mpg with 33s mainly because the tire size gearing might not be as appropriate as u think. With 33s u should have somewhat decent highway, but horrible city mpg. I would definitely recommend a stroker or a diesel for that size tires. I don't think any bolt on is gonna do the trick.
But, my opinion stinks about as much as anybody else's.
As mentioned before, I wouldn't count on good mpg with 33s mainly because the tire size gearing might not be as appropriate as u think. With 33s u should have somewhat decent highway, but horrible city mpg. I would definitely recommend a stroker or a diesel for that size tires. I don't think any bolt on is gonna do the trick.
But, my opinion stinks about as much as anybody else's.
08-31-2011, 11:17 PM
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Year: 1996
Model: Cherokee
Engine: 4.0
get rid of the mechanical and put electric fan in. might need to upgrade altinator. gets less drag on the motor and resulsts in more HP too. Also better cooling. Taurus fans are popular to put in place of the mechanical fan.
you can also take out your ac.
you can also take out your ac.
Last edited by rideordie66; 08-31-2011 at 11:20 PM.
09-01-2011, 02:28 PM
#15
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