The Impact on Safety and Handling
Underinflated tyres reduce your vehicle's handling precision and increase braking distances. They also generate more heat, which raises the risk of tyre failure, particularly during high-speed driving or in hot weather.
Overinflated tyres create a smaller contact patch with the road, reducing grip and making your ride harsher. They are also more susceptible to damage from potholes and road debris.
Fuel Economy and Tyre Wear
For every 1 PSI your tyres are below the recommended pressure, fuel efficiency drops by approximately 0.2%. Over a year, this adds up to significant extra cost at the pump. Underinflation also causes the outer edges of the tread to wear faster, shortening tyre life.
How Often to Check
Check your tyre pressure at least once a month and before any long journey. Always check when tyres are cold — driving even a short distance warms tyres and increases pressure readings.
The correct pressure for your vehicle is found on a sticker inside the driver's door frame or in the owner's manual. If you are unsure about maintaining correct pressure, a mobile tyre technician can check and advise during a fitting appointment.
