Tyre Pressure Guide: How to Check and Inflate Your Tyres Correctly

Correct tyre pressure improves fuel economy, tyre life, and safety. Learn how to check your tyre pressure and what the right PSI is for your vehicle.

Maintaining the correct tyre pressure is one of the simplest yet most overlooked aspects of vehicle maintenance. Under-inflated or over-inflated tyres can significantly impact your safety, fuel consumption, and tyre lifespan.

Why Tyre Pressure Matters

• Under-inflation increases rolling resistance, reduces fuel economy, causes uneven wear, and raises the risk of a blowout
• Over-inflation reduces the contact patch with the road, decreasing grip and increasing the risk of aquaplaning
• Correct pressure optimises handling, braking distance, fuel efficiency, and tyre longevity

How to Check Tyre Pressure

1. 1Remove the valve cap from your tyre
2. 2Press a tyre pressure gauge firmly onto the valve stem
3. 3Read the PSI measurement
4. 4Compare to your vehicle's recommended pressure (found in the door jamb or owner's manual)
5. 5Add or release air as needed

Recommended Tyre Pressure for UK Cars

Most passenger cars in the UK run at 30–35 PSI. However, always check your specific vehicle's manual. Larger vehicles and load-carrying trips often require higher pressures.

How Often Should You Check Tyre Pressure?

Check tyre pressure at least once a month and before any long journey. Temperature changes affect pressure — tyres lose approximately 1 PSI for every 10°C drop in temperature.