When tyres are under-inflated, excessive heat builds up within the tyre and makes them much more susceptible to suffering from a rapid deflation. These dramatic events can make the car extremely difficult to control, especially as they occur most frequently after prolonged periods of high speed running.
Under-inflation, as well as being a huge safety issue from an increased risk of tyre failures and punctures, can also be financially costly because of a reduced tyre life and increased fuel consumption as the engine has to work harder to make the tyre turn.
When checking their tyre pressures, drivers should ensure they are correctly inflated for the load being carried, such as additional passengers or holiday luggage. The correct settings can be found in the vehicle manufacturer’s handbook, inside the fuel filler cap or on a plate on the driver’s door sill.