J&E wrote:
I am curious what others do about air pressure in your fifth-wheel tires. If you set it at proper PSI in the north at 30 degrees and then end up in FL at 90 degrees, what effect will that have on the tire pressure?
The answer to your question is that your tire pressure will be quite a bit higher in FL.
You need to check your tire pressures and adjust accordingly as you move from cold temps to hot temps...or the other way around, in both the trailer and tow vehicle. In your scenario, failure to do this will result in over inflated tires going north to south, or under inflated tires going south to north.