Originally Posted by LJameson
Both my 00 TJ and 05 LJ would average 14-15 mpg. LJ was stock, the TJ is lifted 2.5" on 31's. The only thing you can do to improve it is make sure it's tuned up and running like a top, slow down and don't race around. No mods will get you better mileage, so don't waste your money, so just stick to stock.
That advice is worth more
than the Fitch fuel Catalyst
Slowing the brick down, use the cruise control if equipped, upshift early as possible without lugging, get the weight out, and don't try to compete with the speeding idiots!