Tire chalk test

yeah let me just weight my truck on the bathroom scale

 

There are vehicle scales everywhere that you can use, however I think he's referring to the load ratings for his specific truck.

 

With the stock tires(P and euro metric) at recommended pressures, it's 2,149 lbs per wheel/4,298 lbs per axle. The engineers decided a capacity of 1.5 times that of GVWR, is the suitable inflation pressure for P and euro metric tires.

LT tires are inflated to a capacity of 1,954 lbs...

 

and none of us air down for the winter or off road

 

Yes the truck was aligned when the tires were mounted

 

Winter pretty much already does the airing down for me



Just a random sampling and not even close to the most extreme but... Wednesday afternoon commute vs Thursday morning is going to have a greater than 5 psi difference. How many times a week do we really air up or down to meet the weather? I usually adjust if I'm more than 10 psi off target, otherwise I'd be breaking out the compressor daily.

 

We're a bit cooler here and fairly constant temps, I check mine a once a month or so and adjust accordingly. Our colder weather dropped mine a fair bit lower than I'd like for winter. Currently 30psi with near max load on the truck and icy roads. I have air bags that I check every few days (slow leak in one).