mpg
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Joined: Jun 2011
Posts: 153
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From: buffalo ny
Year: 1998
Model: Cherokee
Engine: 4.0
mpg
I have a 98 xj I6. I just put my rc 3" lift and some 31x10.5 bfg all terrain ta kos and it has killed my mpg. I used to get 18 hwy and now get 13 hwy. Is this normal?
CF Veteran
Joined: Oct 2011
Posts: 4,440
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From: Seal Beach, CA
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Unfortunately yes. The more you lift it and the bigger your tires, the bigger the drop in mpgs (that is assuming you keep the stock gears). If you want your mpg back (or close to it), you'll need to regear
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Joined: Aug 2010
Posts: 1,168
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From: Williamsport, Pa
Year: 1997
Model: Cherokee
Engine: 4.0L
Also, a new speedo gear may help you more acuratly track your mileage. Your odometer is off because of the larger tires. It may help to always drive in 3rd, not overdrive.
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Joined: Aug 2010
Posts: 1,168
Likes: 4
From: Williamsport, Pa
Year: 1997
Model: Cherokee
Engine: 4.0L
It's not 13 if you haven't changed your speed-o gear. It will make some difference.
Look here: http://www.jeep4x4center.com/jeep-sp...FQff4AodYGwjSQ
Look here: http://www.jeep4x4center.com/jeep-sp...FQff4AodYGwjSQ
Last edited by Cherockee; Feb 15, 2012 at 08:57 PM.
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