When is the best time to check your tyre pressure?

Answer: B — When tyres are cold

Checking your tyre pressure when the tyres are cold is the best practice, as this gives a more accurate reading. Tyre pressure increases as the tyres heat up from driving, which can lead to an overestimation of the pressure if checked after a journey. Ideally, tyre pressure should be checked first thing in the morning or after the car has been stationary for at least three hours to ensure that the tyres are at their ambient temperature and devoid of any heat influence from driving. This practice ensures that you maintain optimal tyre performance, safety, and fuel efficiency.