PSI

Drew_K wrote:
I respectfully disagree that running max PSI is bad advice for an RV. Dramatically running over pressuring the tire isn't good, but you're making a compromise when setting tire pressures: ride quality will be better with a lower pressure and be harsher as you increase PSI. Adding more pressure theoretically reduces your contact patch, but unless it's drastic, you won't notice a difference. Perhaps higher pressure will wear the middle of the tires more.

But given the higher failure rates for RV tires vs regular tires, I'd rather run max PSI and have the extra load capacity, at the expense of perhaps a slightly harsher ride and wearing out the tires a little earlier. Even then, I've had to replace RV/trailer tires due to age before they wear the treat out.

In the end, I don't think it's wrong to run at the exact tire PSI for your RV weight, but I also think there is merit to running at max PSI, which is what I do. And I don't think anyone will argue that it's good to run underinflated (unless perhaps if you're on sand, before some smart ass tries to make that argument).

X-2

Less heat build up running max recommend air pressure. I myself always ran the air pressure listed on the tire.