^^What they said. It's not weird. It's a consequence of the design of a part-time real 4WD system like the Jeep's, not some weak AWD system. Do not drive in 4WD on dry or even wet pavement. In fact, if you're on pavement at all and have traction in 2WD, don't be in 4WD. Even with snow or light offroading, if you can do it in 2WD, keep it in 2WD. The only time you should be in 4WD is when 2WD handles poorly due to low traction. Follow that rule and you'll be fine.