Originally Posted by Midniteoyl
1000 miles is not enough to tell by wear pattern.. And 'G' rated tires can be run with less than 110psi.. In fact, if you coach's weight doesnt call for it, running at 110psi , or over inflated at any psi, can actually hurt you while driving in the rain as you have less of a traction 'footprint'..
The tire engineers have a good understanding of the profile of the tire and 20 lbs. more or less is not going to radically change the profile on a 10-ply truck tire. With every new truck and each new set of tires I can definitely tell after 1000 miles if the tread is wearing evenly from edge to edge and I can spot scuffing of the surface from tire squirm caused by under inflated tires.
Funny that people buy into the chalk test where a chalk line is drawn across a tire and after a few yards you are supposed to be able to tell whether the tire pressure is correct, but it is not plausible that after 1000 miles with a fully laden truck or RV that tread wear is apparent.
A tire can be designed for maximum mileage or maximum traction but it is a tradeoff and truck HT tires are definitely designed to minimize tread wear.