I'm getting around 19 mpg with my 01 Kia, so that may be something to consider also. Best I've ever gotten was around 25 mpg, but that was before a lift and oversize tires and a couple of other mod's.

2001 Sportage, TJ 106's, Everet spacers and bumpstops, Bilstein shocks on the rear, cone filter, Crager wheels, 235-75-15 Goodyear tires. Custom front winch bumper by Dave Scott. Currently DOA, but it is a work in progress.
2011 Kia Forte EX