We know that temperature changes have a direct effect on inflation pressures. What about altitude?
A. For every 1000-ft increase in altitude, there’s a 0.5 psi increase in inflation pressure. So a tire that starts in Denver inflated to 100 psi will read around 97 psi at sea level and a tire inflated to 100 psi at sea level will read around 103 psi in Denver. In other words, it doesn’t have much of an effect. Q.
