Reddog1 wrote:
Sometimes I gotta shake my head wondering how some folks think. My rear axle weighs 6200 lbs, the front is 4200 pounds. The maximum PSI on my tires is 120 PSI.
For those of you that are of the belief you should run the maximum pressure the tire is capable of, how would you explain this chart from Michelin?
I am of the belief the PSI is determined by the load on the tires. In my case, 75 psi and not 120 psi. I don't think I should run lower than the 75 psi, due to the tire design and the design of the Vision aluminum wheels. Actually, if my memory is correct, Michelin recommends no less than 75 psi.
A couple of times I aired up to 120 psi. Without the TC, my truck felt as though it had no springs or shocks. It bounced like a ping pong ball.
Perhaps your truck/TC and tire/wheel combo should run the maximum psi. To simply believe the maximum psi on the tire is what you should run is incorrect, in my opinion. I suggest you weigh your axles, then check with the tire manufacture for the proper psi. I will add, with all due respect, the tire store typically does not have a clue on psi, and more often than not put the maximum psi as indicated on the tire.
Wayne
I agree with you, Wayne. Air up your tires based on the load. It's crazy to run 80 PSI, or max air pressure, all the time. Based upon my weights at the scales I run 80 PSI back and 60 PSI front when my camper is loaded. Unloaded, I run 60/60, though my rear can go even lower than that.
