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 Post subject: Lift + 245/75/16 MPG Loss
PostPosted: Mon Feb 25, 2008 3:57 am 
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Joined: Mon Jan 28, 2008 2:54 am
Posts: 46
Location: Saskatchewan, Canada
I didn't do any pre lift and tire mpg testing. So could someone help me and give me an idea of what I should be getting post lift?

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2006 Jeep Liberty Limited CRD - DRL's activated, Moab wheels and 215/85/16 Goodyear Duratracs, Frankenlifted, Cummins Lift pump, Magnaflow 2.5" all the way back, no cat , suncoast, Viper command start, Valentine One.
1967 Jeep M725 - a real cream puff


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 Post subject:
PostPosted: Mon Feb 25, 2008 11:05 am 
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Joined: Thu Dec 29, 2005 9:59 pm
Posts: 5171
Location: Austin, TX
Mine lost about 3 - however 1 of that is just the mileage correction factor for the larger tires - so 2 if you correct for tire size.
It will also be worse on intown driving - the MTR's are ~50lbs/tire vs ~23 for stock so there's a lot more energy required to start and stop them.
They are great offroad.

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 Post subject:
PostPosted: Mon Feb 25, 2008 12:14 pm 
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Joined: Tue Jul 05, 2005 8:23 am
Posts: 3544
Location: New Braunfels, Texas
I added the OME lift and 235/75/16s (less than 5# heavier than stock tires) and my Odometer is 6% off. After corrections I get AT LEAST 20.5mpg city and AT LEAST 27mpg hwy(keeping rpm under 2000)

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Mods: GDE Hot Tune w/ 364#@2000rpm/Air Box /3" Str8 Exhaust/ASFIR Alum Skids/245-75R-16 Cooper STT PRO/OME LIFT w/Clevis & 4 Spring Isos/AirTabs/Rigid 10" S2 LED/4xGuard Ctr Matrix Bumper
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