I'm looking at the Michelin tire inflation tables (because they are the only one with 65 PSI information) and my load is very light for 65 PSI.
My front weight is 2320 per tire. The weight allowable per tire is 2,755, or difference of 435 pounds. If you consider that the difference between 65 psi and 75 psi is 285 pounds, I am overinflated by 15 psi
The rear is even more stark. The weight of each dual on my coach is 4,070 pounds. The allowable weight per dual is 5,240, or a difference of 1080 pounds. The difference between 65psi and 75 psi is 285 pounds. I'm similarly over inflated at this weight too.
What if I reduced my pressure to from 65 psi to 55 psi? I would still have a significant margin for error. Of course. I would need to reweigh the coach frequently, but my margin of error at those numbers is so great I can't imagine there would be a problem.
