Tire inflation pressure
I have seen it posted many times to inflate tires 5-10# over rv listed tire pressure. Why would you do this?
Forum Discussion
Tom/Barb wrote:hbillsmith wrote:
What do you mean by magic number? I assume you mean a different cold pressure for each tire that then heats to the mfg max pressure such that when rolling down the road they all appear equal on the TPMS. Right?
You'd never want to be at the maximum tire pressure even when hot.
The magic number is the cold tire pressure, (for that tire) that when running will be high enough to prevent over flexing of the tire side walls, yet low enough to not exceed the tire wheel maximum pressure.
I'm not sure this is true . Tires are rated at cold .- unused for some hours - not hot running psi for a reason . When hot they can exceed that number and do if inflated by weight to the max psi. Otherwise you could be under inflated for some time ?
