When is it recommended to check the tire air pressure?
- When the tires are hot.
- Correct answer: When the tires are cold.
- Once a year.
- Before every periodic treatment.
Why this is the answer
The correct answer in the official bank: When the tires are cold.
Tire pressure should be checked when the tires are cold, before driving or after the vehicle has been parked for a while. Driving heats the tires, the air inside expands and the pressure rises, so a reading on hot tires shows more than the real value. The manufacturer's recommended pressures refer to cold tires. Checking only once a year or at periodic servicing is not enough.