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-   -   Realistic expectations for drop on mpg? (http://www.wranglerforum.com/f282/realistic-expectations-for-drop-on-mpg-44134.html)

G-Pur 02-08-2010 07:40 AM

Realistic expectations for drop on mpg?
 
Hey all, I'm finally in the market to upgrade lift/tires. What kind of mileage drop is typical for an I6 with a D35 on the following:

2.5" lift w/ 32's
3.5" lift w/33's

Thanks.

mudslinger150 02-08-2010 07:49 AM

I went from stock with a D35 and 31's, to a 3.5" lift and 33x12.5's and i went from a consistant 16mpg down to 13-14mpg.

InfernoGirl 02-08-2010 08:00 AM

Did you upgrade you speedo gear when you upped the tire size?

snwchris 02-08-2010 08:16 AM

31' to 33's usually need a gearing upgrade if you want to try retaining some of the MPG's with the bigger tires.

Typical gear ratios depending on model are usually 3.07 and 3.73

Usually you'll want to upgrade to 4.56 to help retain the MPG's


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