Changes in Air Temp and Tire PSI
If airing up tires to 80 PSI (Manufacturer recommended Max cold pressure indicated on tire) while air temp is 45 degrees and then traveling to a warm climate, will I likely have to let some air out? W...
Forum Discussion
ajriding wrote:
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My 80 pis tire went to 125psi just going from 80 degrees to 115 degree climate. This was combo of ambient temps and the heat generated from driving - mostly heat from driving with a lot of weight on the tires.
It is smart to check psi in this situation, but a warm tire would not need to be deflated back to the cold psi rating (in this case 80), rather something around 100 would be fine. .....
Absolutely, not fine and very dangerous advice. Never, ever deflate a hot tire because the pressure increases due to driving. If it is hot and you are carrying a heavy load at high speed, the solution is to slow down. Even then expect high pressure during highway driving in hot weather.
