We know as the outside temperature drops, the cold tire pressure will drop. Also, as the tire rotates, the tire temperature increase and so does the tire pressure. Now my questions is: I set my cold tire pressure (class C Ford chassis) in SoCal at 75 PSI up front and 80 PSI on the rear based on factory recommendation. The temperature was about 75 degree at the time. While in motion my tire pressures usually increase by 7-10 (or more) based on the tire temperature and I guess the outside temp. I have one of the TST tire pressure system which shows tire pressure and temperature. When we were in Reno/NV, the outside temperature dropped to low 40s and my cold tire pressures dropped by 5-7 PSI at different locations which made m TST unit unhappy. Since after 10-20 minutes of driving and when the tire temperature reaches 60ish or so degree the tire temperature reaches the recommended setting, is it advised to adjust the cold tire temperature when temperature drops like this?
Thanks
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