The manufacturer of your vehicle specifies the suitable pressure to be maintained and is measured in PSI or BAR pressure. It is
important to check tyre pressure regularly. Air from a tyre generally escapes at the rate of up to 2 pounds of air every month. Loss of air pressure from a tyre is pronounced during warm weather, so more regular checks are needed when temperatures rise.
Benefits of correct air pressure:
- Safety: Tyres that are under inflated can overheat; and over inflated tyres can lead to poor vehicle handling on the road.
- Economy: Over or under inflated tyres suffer more damage than those with the correct pressure and need to be replaced more frequently. Vehicles with under-inflated tyres have increased rolling resistance and require more fuel to maintain the same speed.
- Environment: Correct tyre pressures help maintain optimum fuel efficiency. This can equate to lower carbon dioxide (CO2) emissions from your vehicle than those from a vehicle with incorrect tyre pressure. Thus by maintaining the recommended air pressure in your tyres you contribute towards a cleaner environment.
Role of Valves:
- Valves help maintain tyre pressure and permit air to be added or removed.
- The valve in your wheel is a small but very important part of your vehicle as far as safety and tyre life is concerned. It holds the pressure inside the tyre assembly and is the access point to adjust your tyre pressure. A valve cap in good condition is also essential as it provides a secondary seal and prevents dirt from getting inside. It is recommended to have the valves replaced every time your tyres are changed.