12 miles to the gallon???
#2
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Join Date: May 2009
Location: Glen Burnie, MD
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Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
i get 13-15mpg and i consider that awesome, i also have duel lockers, 35" tires, and 4.56's
i also gained about 2mpg recently and a smother acceleration due to injector swap...went with LS1 injectors.
i also gained about 2mpg recently and a smother acceleration due to injector swap...went with LS1 injectors.
#5
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Location: atlanta
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Year: 1999
Model: Cherokee
Engine: inline 6
i get like 13.5 , and i'm all stock, but i mainly just drive 2 miles to school and to miles back.....daily so never really warms up and averages out.
#7
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Location: St Augustine, Fl
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Year: 1999
Model: Cherokee
Engine: 4.0 Power Tech
18 in town
My stock 99 4x4 gets about 18 around town and about 20 highway but I have to keep it under 70 on the interstate, it has 355 gears so I keep it under 2200 rpms. The worst mileage was from my 06 Commander it got about 16 in town and 19 on the iterstate, it did better but they reprogammed it on a recall and killed the mileage. All the Jeeps I have had run anywere around 17 worst to 09 liberty Wifes city jeep at 22. 01 ZJ 21 hwy, 06 Commander 19 hwy, 09 Liberty 22 hwy and 99XJ 20 hwy. Two 4.0's one 3.7 and one 4.7 but they are all pretty close together.
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#8
CF Veteran
When you did the tuneup did you change the oxygen sensor? Theyre supposed to be changed ~85000mi in a Renix.
Thats not very good if its stock, you should be getting more like 16-17City and ~20highway.
Thats not very good if its stock, you should be getting more like 16-17City and ~20highway.
#10
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Year: 1999
Model: Cherokee
Engine: inline 6
So, what ,if any are some signs you need to replace the sensor. Will the jeep act differently if it is bad?
#11
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Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
rough idle, fuel smell from exhaust, and less power. also u will fail smog if your state requires it. also with the RENIX system it is **** to blowing the wires out that go to the sensor, so check those with a volt meter before just swapping out the O2 sensor.
#13
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Year: 1989
Model: Cherokee
Engine: 4.0
Thanks for the info!!!! I will have to ask my mechanic what he did. But ya its all stock. Also when I drive over bumps and pot holes it sounds like something is loose in the front end. I thought at first it was my shocks, but it is getting worse and sounds like something isnt tight in the front. Hope my engine doesnt fall out!!! hahhahaa
#14
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Year: 1984
Model: Cherokee
Engine: Chevy 2.8L V6
I feel special, '84 Canada-spec with a homemade 2 (maybe3)-inch lift (blocks under springs and shocks from a Mercedez 240) with 31s and I get 21 mpg...
#15
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Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
Thanks for the info!!!! I will have to ask my mechanic what he did. But ya its all stock. Also when I drive over bumps and pot holes it sounds like something is loose in the front end. I thought at first it was my shocks, but it is getting worse and sounds like something isnt tight in the front. Hope my engine doesnt fall out!!! hahhahaa
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