Warm temperatures make the surface of a road hot which can lead to increased friction between a tire and the road. (chicagopersonalinjurylawyerblog.com)
I wouldn't think you would want to increase friction with your publisher, though I suppose he's got plenty of experience with that kind of thing. (pcgamesn.com)
It also tends to produce heat from increased friction, which can lead to the buildup of dirt and deposits within the system, potentially limiting your ability to steer properly. (citytoyota.com)