Should I reduce air tire pressure when driving on hot roads?

Question

The tires were properly inflated this morning, but because of the heat are now 8-10 psi over the manufacturer recommended limit. Does that change your response?

Answer 1

Mostly, when the road is hot, the air temperature is hot to .

So if you fill the tires with the pressure you normaly do cold, the pressure warm is the same as it would be if you filled at a lower air temperature. For instance  filling at 10degr Celcius, temperature warm in the tire gets about 35 degrees celcius when you drive at 10 degrees so road is relatvely cold.

When you fill at 30 degrees celcius, the temperature warm in the tires gets about 55 degrees Celcius . So what the pressure gets higher when the tire is on working-temperature is aproximately the same.

Annother thing is when you fill alt 10 degrees  outside and later you drive when it is 30 degrees  outside . then there is a difference.

Answer 2

NO, Lowering the air pressure will cause the tyre to overheat, by excessive flexion of the side walls,  leading to a potential blowout, and everything that entails. Keep the pressures to the manufacturers recommendation, or increase by about 2 psi all round

Answer 3

NO!

An under-inflated tire does not dissipate heat as well as a properly inflated one.

UNDER-INFLATED TIRES BLOW OUT!

Answer 4

No way! Proper tire pressure is very important when driving, when the days and roads get hot during the summer there is a good chance your tire is loosing presure.  Make sure you check them when you see big changes in temperature.