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Old 01-02-2013, 02:52 PM   #8 (permalink)
Sven7
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Join Date: Aug 2011
Location: Warren, MI
Posts: 2,456

Boo Radley - '65 Ford F100
90 day: 13.28 mpg (US)
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I'll go out on a limb and say 2mpg from lowering a Jeep (any Jeep) is nonsense. That's a 13% increase in FE (from 15mpg) which would mean you'd need a 26% aero improvement at 55mph. A couple inches of tire are not going to be the difference in frontal area or Cd to pull the FE up that much.

If you want to lower your car, buy some high quality coilovers. It'll be much more fun to drive than stock and it'll look better. But suspension parts are expensive so don't expect a ROI.
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