If this were my rig I would run 28 psi. However I would lower it to 22 psi if im going wheeling. Wheeling on rocks should run about 14-16 psi. If you don't want to adjust all the time Try 28, and see how that feels on the pavement. My jeep is pretty "light" however. No winch, stinger, hard top off. I would Increase by 2-3 psi per 200 lbs of extras.