This is an interesting thread, if I could squeeze even 18MPG out of my 2005 LJ I would be thrilled. It got 20'ish when it was bone stock on 30's, then I put it on 33x10.5x15 BFG MT's and it dropped to 12-16 mpg's. Now it is on 31's and it barely does better than 14 mixed city/highway. I once...