Re: air pressure
I run 110 psi cold on all 12 tires, 6 on TV and 6 on CY. With an IR gun, I shoot all tires, hubs, and brakes every 2 hours at rest stops.
The tires will gain a few more psi on the sunny side vs the shaded side running at 60 mph for a couple hours, but I've never seen more than a 20 psi gain........so 130 psi has been my max (so far). The 6 CY tires run around 120° +-, the TV front tires around 110° , and the rear 4 get upwards of 130°.