Maintaining correct tyre pressure

Maintaining correct tyre pressure

Why is tyre pressure important?

Tyre pressure affects your car’s handling, turning, braking and fuel efficiency – all of which you need to be able to rely on. What’s more, a tyre at the wrong pressure will wear out faster and might put your safety at risk.

Check tyre pressures regularly

Your tyres lose pressure all the time.

Even in ideal conditions they lose around 0.069 bar or one pound per square inch (psi) each month – and this figure rises as the temperature goes up.

So, you should check your tyre pressure at least once a month (and while you’re at it, have a good look at your treads).

If you don’t know what the recommended pressure is, you can find it in your owner’s manual or on the sidewall of your tyre.

How to check your pressure

  1. Use a pressure gauge. Either buy one of your own or use one at your local garage.
  2. Do it when tyres are cool because tyres heat up as you drive and that can affect your reading. Try first thing in the morning.
  3. Unscrew the valve cap and place the gauge over the valve. Don’t worry if you hear a bit of hissing – that’s normal.
  4. Read the pressure on the gauge and compare it with your tyre’s recommended pressure.
  5. Put more air in if you need to, either using your own air compressor or by going to your local garage. 
  6. Re-check your pressure using the gauge and check against the manufacturer’s specifications until you have the correct pressure.
  7. Replace the valve caps on each tyre.
  8. Check each tyre. If your tyre pressure is dropping too much, ask your garage for help – it could be because of ill-fitting rims or a faulty valve.

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