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89 renix mpg

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Old Apr 1, 2012 | 10:14 PM
  #61  
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From: Nazareth/Pen Argyl, Pennsylvania
Year: 1989
Model: Cherokee
Engine: 4.0L 242ci I6
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D44 came with the tow package. See if you can find the link to the jeep site and get a list of options it came with. A few guys have done that, I'm sure someone has a link. Or you could measure it the old fashioned way by marking the tire and driveshaft and measuring the spins. Not sure exactly what to do on that, but someone will chime in. I remember my dad doin it with his 70 chevelle when I was about 10. I'm a little rusty on that subject.
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Old Apr 2, 2012 | 12:59 AM
  #62  
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From: phoenix az
Year: 1989
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Engine: 4.0l 6 cylinder
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Originally Posted by XJ.89.Limited
D44 came with the tow package. See if you can find the link to the jeep site and get a list of options it came with. A few guys have done that, I'm sure someone has a link. Or you could measure it the old fashioned way by marking the tire and driveshaft and measuring the spins. Not sure exactly what to do on that, but someone will chime in. I remember my dad doin it with his 70 chevelle when I was about 10. I'm a little rusty on that subject.
Mine has the tow package
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Old Apr 2, 2012 | 02:06 PM
  #63  
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From: Nazareth/Pen Argyl, Pennsylvania
Year: 1989
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Engine: 4.0L 242ci I6
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The D44 is probably original then.
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Old Apr 2, 2012 | 02:31 PM
  #64  
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From: Bakersfield CA
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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I normally get around 20 to24 on the HWY but in town I get 11 to 18
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Old Apr 2, 2012 | 03:14 PM
  #65  
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From: phoenix az
Year: 1989
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Originally Posted by highmileage
I normally get around 20 to24 on the HWY but in town I get 11 to 18
That's what I'm expecting but it seems like I'm getting worse
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Old Apr 2, 2012 | 06:59 PM
  #66  
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From: Northern MN
Year: 1990
Model: Cherokee (XJ)
Engine: Renix 4.0
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I just filled up today. 166 miles @ 16.7mpg. I've been throttle happy though
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Old Apr 2, 2012 | 07:02 PM
  #67  
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Originally Posted by austinjoe13
I just filled up today. 166 miles @ 16.7mpg. I've been throttle happy though
U only get 160 miles a tank what happened to like 250 a tank
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Old Apr 2, 2012 | 07:06 PM
  #68  
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From: Northern MN
Year: 1990
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Originally Posted by stev-o
U only get 160 miles a tank what happened to like 250 a tank
I was in town and had half a tank so I filled up. The last tank I got 330 miles out of.
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Old Apr 2, 2012 | 07:10 PM
  #69  
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Originally Posted by austinjoe13

I was in town and had half a tank so I filled up. The last tank I got 330 miles out of.
Wow that's really good I need to fill completely and do a test and see what I get but I have a feeling I won't anywhere close to that good
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Old Apr 2, 2012 | 07:55 PM
  #70  
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Originally Posted by stev-o
Wow that's really good
You're telling me! For 3 months I drove my dad's XJ on 33s and I was lucky to hit 200 miles (calculated) before the needle hit E.
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Old Jun 4, 2012 | 01:18 PM
  #71  
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Originally Posted by austinjoe13

You're telling me! For 3 months I drove my dad's XJ on 33s and I was lucky to hit 200 miles (calculated) before the needle hit E.
I've been getting about 11 miles to the gallon
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Old Oct 15, 2012 | 01:21 AM
  #72  
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From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
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I feel ya. Rebuilt top end, engine runs like a Swiss watch. I'm getting between 11-14 and I drive 50 miles a day. 33 inch all terrains. Here's the thing, if you regear the speedo your shift points will change and mileage will get worse. The trams shifts according to speed. The biggest gain you will get is changing to 4.56 gears in the rear. That will also correct the speedo. I'm getting ready to throw an 8.8 in mine with 4.10 gears. That will help. Read the latest issue of jp. They have mileage tips and the article will reaffirm my post. I'm angry as hell spending 20-30$ a day on gas but I can't bring myself to sell my Cherokee after putting thousands of dollars and countless hours into it rebuilding damn near everything.
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Old Oct 15, 2012 | 04:56 AM
  #73  
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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First thing would be checking for proper operation of sensors . Also what temps are you running. aAlso complete tune up air up tires. As for gearing if rear axle is open carrier jack up one rear tire posi do both mark tire and spin one full revolution counting how mant times rear yoke goes around double that gets you gearing for open carrier .Posi would be actual turns....http://www.lunghd.com/Tech_Articles/...iagnostics.htm
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Old Oct 15, 2012 | 05:05 AM
  #74  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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post number 6 explaing yoke counts better ...http://www.naxja.org/forum/showthread.php?t=10794
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Old Oct 15, 2012 | 05:09 AM
  #75  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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Then use cross reference chart to get correct gear .Then check mileage again...http://www.jeep4x4center.com/jeep-sp...ears/index.htm
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