Let me just start off by stating that I knew I was going to decrease my already crappy mileage, by installing 32" BFG Mud Terrain K2's, but I would typically get around 200-220 miles per tank of gas on my Wrangler(which BTW has the smaller fuel tank), but now I get maybe 160 give or take. My engine has not thrown any codes, but could it be that my o2 sensors should be replaced? I'm kind of at a loss here. I should state that most of my driving is around town driving.
98 Wrangler Sport