CapriRacer wrote:
The alternative is to constantly adjust the pressures as the ambient temperature changes. That's a lot of work and requires a lot of math.
If you check your pressure each day before you drive on your tires there is no math involved. Your tire gauge will read the correct pressure and automatically adjust for the ambient temperature. 100psi at 30 degrees with your gauge is correct at that location as is 100 psi with your gauge at 90 degrees in a warmer location.
All of the manufacturers warn you about adjusting the tire pressure on warm tires.