Gear help MPG? - JeepForum.com

 
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post #1 of 6 Old 09-04-2012, 03:39 PM Thread Starter
caleb032
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Gear help MPG?

So I have a 2010 JK Unlimited 3.5" RC lift and 35" Federal Couragas and to be honest the gas mileage sucks! I am currently getting 11-12 MPG. What can I do to get some power and MPG back? From what I hear the answer is GEARS???

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post #2 of 6 Old 09-04-2012, 04:05 PM
paul84043
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Did you adjust your computer to compensate for the larger tires? Stock tires to 35's will have you way off on the low side.

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post #3 of 6 Old 09-04-2012, 05:13 PM Thread Starter
caleb032
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yes I have
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post #4 of 6 Old 09-04-2012, 05:44 PM
DBA2GO
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I'd recommend for an auto trans 5.13:1 gears (that is what I have) and for a manual trans 4.88:1 (from what I've read - no experience on this one).

One foot in the grave & one foot on the gas pedal!!
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post #5 of 6 Old 09-04-2012, 07:38 PM
jstrubberg
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^^^^That.^^^

I got close to 3 mpg back on one by "right sizing" the gears.

Don't think you are ever going to get decent mileage out of a lifted rig, though. It's one of the things you give up when you go that route.
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post #6 of 6 Old 09-05-2012, 09:22 AM Thread Starter
caleb032
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Yeah but my 2011 Hemi 4x4 get better mileage then my Jeep and its lifted with 34's! lol
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