Check your tyres with your iPhone
Released as part of October's tyre safety month, the app is available through the travel and navigation sections of the iPhone Store. The app lists the correct pressure in bar and PSI.
The correct tyre pressure for your car is obtained by entering its registration number into the app.
Tyre pressure matters
Use a quality pressure gauge to check the pressure of your tyres and keep them properly inflated. Under-inflated tyres will wear faster, increase your fuel bills, compromise handling and are more likely to suffer a sudden blowout.