Is there any difference in the PSI you run your tires at, I have P265/70R16 and I was wondering if it differs from what PSI level you should keep it at from stock tires I'm sure the same goes for 285s too.
Im fairly certain that any size tire doesn't matter what PSI you are running. It depends on the weight of the vehicle, and it does matter depending on the width of the tire to an extent.