Final answer:
Letting air out of hot tires is not recommended; as they cool, the pressure will be lower than optimal. It's best to check and adjust tire pressure when the tires are cold, according to the vehicle's specifications.
Step-by-step explanation:
The effects of letting air out of hot tires. When air is pumped into a deflated tire, the volume increases without much change in pressure until the tire's full size is reached, due to the flexible nature of the tire walls. Once the tire is inflated to its design volume, additional air increases the pressure inside the tire.
As the tires are used and become hot, this increases the pressure further due to the temperature rise. Releasing air from hot tires is generally not advised because as the tires cool down, the pressure will drop, potentially below the optimal level for safe and efficient driving.
Tire pressure should always be measured and adjusted when the tire is cold to ensure accurate readings, in line with the specifications recommended in the car's manual or the sticker inside the door jamb.