Originally Posted by redjet
Should tire pressure be checked on the road and reduced accordingly?? Perhaps this is a reason some tire failures. Just a thought.
No, the tire manufacturers take that into account when building the tires. That is why it says on the side wall xxx PSI COLD. Cold meaning that the tires are not warmed up from driving. My truck tires are aired up to 80PSI in the rears' cold and I monitor the pressure while travelling. Quite often they get up to mid-upper 80's while towing, and the next morning are back down to 80.
Here is a helpful discussion from Bridgestone
1. Start with Cold Tires if Possible
Vehicle manufacturers specify PSI – literally “pounds per square inch” of pressure – assuming tires are cold. Tires are considered cold when the vehicle has been parked for three hours or more, or if the vehicle has been driven less than a mile (1.6 km) at moderate speed.
PSI is the unit your pressure gauge uses to provide readings.
5. Fill to the Recommended PSI
Use an air compressor to refill any tires with low pressure. Many air compressors are different, so read directions carefully to be sure you’re using it correctly.
If you’re using the air compressor at a gas station, be sure to park so that the hose will reach all four tires. Insert change into the machine until you hear the motor running. Fill each tire by placing the end of the hose over the valve stem and pressing on the lever.
Using a gas station air compressor means your tires might be “hot.” If it is necessary to adjust inflation pressure when tires are “hot”, set their pressure to 4 psi (14 kPa) above the recommended cold inflation pressure.
Recheck the inflation pressure when the tires are cold.
After filling your tires, use the gauge to check pressure again. At this point, it’s ok if you overfilled the tires because you can always let some air back out. Never drive on overinflated tires. Overinflation can result in decreased traction, premature wear, and decreased impact absorption.