Question 4047
To check the inflation pressure, how should the tires be?
- Cold or hot, it doesn't matter.
- Cold.
- Hot.
Show answer and explanation
Correct answer: Cold.
Check the pressure when the tires are cold, after the vehicle has been stationary for at least an hour or after driving just 2 or 3 km slowly. Driving heats them up, the air inside expands, and the gauge reads higher than the actual pressure. If you check them while hot, you can end up letting out air that should stay in.