Tyres Cardiff

Checking your Tyre Pressure

Tyres Cardiff
Tyres Cardiff

How Do I Check Tyre Pressure?

Before you begin, ensure that you are using a pressure gauge that uses the same unit of measurement as the pressure guidelines provided by the manufacturer for your car. Once you've got a suitable pressure gauge:

Follow Bridgestone’s step-by-step advice on checking your pressures:

  • Find the correct pressures in your vehicle handbook or inside the driver’s door or fuel cap (this will be a figure in psi or bar).
  • Unscrew the plastic cap on the air valve.
  • Press the tyre-pressure gauge against the valve and hold it down firmly. If you hear a hissing noise, you are letting air out. Press down harder.
  • Read the measurement on the gauge.
  • To add air, pump gauge until correct pressure is shown. To deflate, depress the tyre valve.
  • Make sure to check the spare tyre too. It's easy to forget, and you never know when you might need to use it.

When you visit us at A&A Tyres Cardiff we will check your tyre pressure for free with any tyre replacement or service

Why is checking tyre pressure important?

Your entire vehicle's weight is supported by tyres that are losing air on a regular basis, so it is essential to check your tyre pressure on a regular basis.

Tyre pressure along with balancing affects a vehicle's handling, handling and comfort particularly with regard to braking, cornering, etc.

Fuel consumption is also affected by tyre pressure. A deformed tyre can increase your car's resistance with the road, resulting in it working harder and cost you more.

The authorities predict that correctly inflated tyres can even improve your mileage per tank as much as 3%, so it makes sense from an economic perspective too.

How do I measure tyre pressure?

There are two systems used to measure tyre pressure: bar (metric) and pounds per square inch or PSI (imperial).

These are usually quoted together in user handbooks or tyre pressure stickers.

1 Bar = 14.5 PSI if you need to convert.

At petrol stations, you'll almost always be able to select the correct pressure based on either of these measurements. A good home pressuriser will display both numbers on their gauge too.

What should my tyre pressure be?

This will depend on your vehicle and tyres.

Most cars come with a sticker somewhere on their bodywork that tells you the correct tyre pressure. This sticker should be found on the inside of your door, on the part of the vehicle body that is hidden from view when the door is closed. If the vehicle does not have a sticker, then refer to the owner's handbook.

The correct pressure information will be provided in relation to various loadings (two people, four people, etc), so it's important to pick the one that best suits your needs.

Check your tyre pressure at least once a month, when your tyres are cold, and before long journeys.

Tyres Cardiff