...2 times a year:
When I go to check tire pressures. Getting to those inside rear tires is a BIOTCH. Last night was one of those 2X/year.

I do check my tires nearly every time I drive the truck though. I use the laser pyrometer (laser temp gun) to make sure tire temperatures are uniform at every stop; especially when towing. It works fantastic for such.

High temp = something is wrong. It's probably one of the best tools that I own. EVERY ONE of us should have one.

What's the average temp of your rubber?

I'm too old to use rubbers anymore.



Tires:
Completely varies based on temperature, sun/cloudy/night, and precipitation.

I look for uniformity.

The side with sun on it will be 10-15 degrees warmer.
Compare sun side with shade side on trailer and truck to make sure temp differential is similar. (both sides ought to be the same at night)

I usually hit with the laser:

Truck:
All the tires on the sidewall (sometimes check the tread too, which will be warmer by about 5 degrees
Brake rotors and calipers (shoot through open spots on wheel)
Rear axle housing. (I have a transmission temperature gauge in the truck.)

Trailer:
All the tires on the sidewall (sometimes check the tread too, which will be warmer by about 5 degrees or so)
Brake rotors and calipers (shoot through open spots on wheel)
Hubs
Wheels (at the base of the center cap) (heat radiates; a hot tire will make the wheel warmer than the others and a hot hub will do the same)

This takes all of 2-3 minutes to do; nice way to pass the time when pumping fuel and you get to do a full visual walkaround the rig as well as check all the straps.

Why do I feel like a 2 mile trip to a boat ramp would take 6 hrs with you?

Kidding of coure, good info

LMAO! You're on the low side of that estimate.
You may have just helped me figure out why my GF drives herself to the ramp.

When I had my dually, it had long extended valve stems that were easy to check

I was thinking the same thing........

Fuel Truck/boat- 15 minutes (verify proper octane)
Truck/trailer check- 2-3 minutes
Tire Pressure- 14 tires (6 truck/6 trailer/2 spares)- 10 minutes
Re-torque all lug nuts truck/trailer
Check lights on truck/trailer- 10 minutes
Fluids Check Truck/Boat- 15 minutes
Back in the house to shower/get ready to leave- 20 minutes
Repack cooler- ice has started to melt-
Recheck Coupler on trailer, verify straps/chains
Put Wide Load Flag on trailer, set launch cones around perimeter of truck to let everyone know you are getting ready to leave
Start Truck and let it idle/warm up
Recheck oil/tranny fluid after warm up
Triple tap horn- first to test it and double tap follow up to alert others that you are leaving
Tide has since gone out, can't launch anyway.
Now 6 hour wait until tide returns
Recheck the above and read "Safe Towing for Dummies" guide book
Whew, getting dark now, skip getting the boat wet and put it back in the toy barn!

Now THAT's funny!!

Maybe a dumb question but what is a DRW truck?

DRW: dual rear wheel
SRW: single rear wheel