What can this achieve?
Correctly inflated tyres are vital to the safe operation of any vehicle, but it
can also have significant affects on the fuel efficiency of the vehicle.It has been calculated that overcoming the rolling resistance of tyres uses 30% of the fuel required on a truck.
Maintaining tyres correctly minimises rolling resistance and thereby reduces fuel consumption and environmental emissions. Operating a tyre only 10% under inflated can increase fuel use by 1.5%. Drivers should be encouraged to check tyre pressures regularly and tyre condition daily. Stones and foreign objects caught in the tyre tread should be removed and all inflation valves should be fitted with dust caps, preferably metal ones as they form a secondary seal against valve leakage.
The use of low rolling resistance tyres will also have a significant impact on reducing fuel cost. Rolling resistance is the amount of energy a tyre absorbs as it revolves and deflects. As the rubber deforms it gives out energy in the form of heat. Lower rolling resistance is therefore favourable as less fuel is required to propel the vehicle forward.
Traditionally lower rolling resistance had meant a reduction in wet grip performance. This problem however has now been reduced by silica, derived from sand being added to the tread compound of tyres thereby improving grip particularly in wet conditions. Leading manufacturers are heavily pushing lower resistance or ‘green’ tyres for fuel economy and reduced environmental impact.