Tyre pressure

An under-inflated tyre can further put safety at risk as it may collapse and consequently cause an accident. Low tyre pressure has an extremely negative effect on tyre durability, due to excessive stress in the tyre shoulder and heat build-up from sidewall bending. Tyre industry surveys indicate that across the EU, not less than 65% of European cars have permanently under-inflated tyres. Driving with tyres at the right pressure is of paramount importance for vehicle safety, since only properly inflated tyres hold the load, adhere to the road, consume less fuel, produce less noise, assure the best braking distance and contribute to extending the lifetime of the tyres. Indeed, under-inflated-tyres can increase fuel consumption by up to 4%, as they require extra energy to roll, while reducing tyre lifespan by 45%. [1]

Monitoring tyre pressure should be systematic and regular as the tyre system (tyre-wheel-valve) naturally lose pressure over time, about 10kPa every month and it is very difficult, often impossible, to witness this loss by visual inspection. Therefore fitment of accurate Tyre Pressure Monitoring Systems (TPMS) on all new vehicles will help drivers to keep their tyre pressure as close as possible to the recommended values. Since the benefits of TPMS for safety and environment have been recognised by Regulation 661/2009, it should be considered to extend the obligation for TPMS in passenger vehicles to other categories of vehicles, such as light and heavy commercial vehicles. ETRMA also calls for including mandatory tyre pressure checks in the Periodic Technical Inspection of vehicles.

[1] European Commission, Staff working Document, SEC(2008)1908 (23.05.2008.)
Annex to the Regulation of the European Parliament and of the Council concerning Type-approval requirements for the general impact asessment


Did you know?

8 out of 10 motorists in Europe drive on under-inflated tyres and 3 out of 10 are driving on seriously under-inflated tyres. Under-inflation is the leading cause of tyre failure. Properly inflated tyres carry the load, contribute to less fuel consumption and produce less noise.