tyre pressure

Importance of Correct Tyre Pressure

Having the correct recommended tyre pressure in your vehicle’s tyres not only optimises the performance but also increases your personal safety and those of other road users when driving.

Check your tyre pressure

As a guide you should check your tyre pressures at least once a month, as well as before long journeys. Ignoring this advice runs the risk of decreasing your grip and increasing your braking distances. You could also damage your tyres resulting in possible rupture during service, reduce their lifespan, and increase your fuel consumption.

The recommended tyre pressure levels for front and rear tyres are often different.  If you’re not sure what your tyre pressures should be, or even how to check tyre pressure, why not spend a couple of minutes reading the following article?  It could save you more than the cost of replacing a tyre.

tyre pressure 2

tyre pressure 2

When did you last check your tyres?

Checking your tyre pressure is inexpensive and simple. So why do so many of us fail to weigh up the costs of ignoring this vital procedure?

Driving with incorrect tyre pressures can affect a vehicle’s handling and can seriously compromise safety — possibly leading to incidents that can put lives at risk.

If your tyres are over or under inflated enough to be considered un-roadworthy, reading this article could save you 3 penalty points and a fine of up to £2,500 per tyre.

Not sure of the correct tyre pressures for your vehicle or where to find them?

The correct tyre pressure for your vehicle can normally be found in your owner's manual.

The information may also be marked on the vehicle (for example on the driver’s door pillar, or on the inside of the petrol flap). In most cases, two different sets of pressures are given:

• For 'normal' driving conditions.

• For a loaded vehicle (with extra people or heavy items on board).

To check your tyre inflation pressures you will need a tyre pressure gauge or use the gauge on the inflation equipment found at most garages and petrol stations. However, be sure to check the equipment for any damage as it might not read properly.

tyre pressure 3

tyre pressure 3

How tyre pressure can affect safety

 

Endurance

Driving on under-inflated tyres leads to deterioration and weakening of the reinforcing structure and could eventually result in rupture and rapid deflation. Even after re-inflation a tyre that has been run under inflated can still rupture.

Aquaplaning

If below the vehicle manufacturers recommended tyre pressure, there is a sharp increase in the risk of aquaplaning.

Braking

A difference of 1 bar, or 14 psi, from the vehicle manufacturers pressure recommendation can increase the braking distance on wet roads by 11 metres. This is more than 2 pedestrian walkways!

Fuel Consumption

Tyres under inflated by 14 psi (1 bar) have increased rolling resistance, which increases fuel consumption by 1 full tank of fuel per year.

The Tyre Pressure Check

By keeping your tyres at their correct pressure, you’ll reduce your running costs. Under inflated tyres are prone to overheating use more fuel and wear out more quickly. Even 7 psi (0.5 bar) difference from the vehicle manufacturers recommendation can reduce tyre life by around 8000km.

Likewise, over inflated tyres can be more sensitive to impacts, can wear more quickly and sometimes more irregularly.

A tyre loses some of its pressure through natural causes (typically around 1 psi (0.07bars) per month). Pressure loss may be accelerated by other air leaks due to:

  • an accidental puncture
  • the valve, which must be changed each time a tyre is changed
  • the valve cap, which is essential to guarantee an airtight seal, and must have a rubber seal inside
  • the wheel, which should be cleaned each time a tyre is fitted.
  • Ambient temperature falling during winter

A tyre inflated to the recommended tyre pressure improves safety, is more economical in use, and is better for the environment. For a better understanding of your tyre, including knowing how to read your tyre, read our handy hints and tips section.

A correctly inflated tyre improves safety, is more economical in use and is better for the environment.
pressure

pressure

By keeping your tyres at their correct pressure, you’ll reduce your running costs.

Under inflated tyres are prone to overheating use more fuel and wear out more quickly.

Even 7 psi (0.5 bar) difference from the vehicle manufacturers recommendation can reduce tyre life by around 8000km.

Likewise, over inflated tyres can be more sensitive to impacts, can wear more quickly and sometimes more irregularly.

A tyre loses some of its pressure through natural causes (typically around 1 psi (0.07bars) per month). Pressure loss may be accelerated by other air leaks due to:

• an accidental puncture

• the valve, which must be changed each time a tyre is changed

• the valve cap, which is essential to guarantee an airtight seal, and must have a rubber seal inside

• the wheel, which should be cleaned each time a tyre is fitted.

  • Ambient temperature falling during winter

 

A tyre inflated to the recommended tyre pressure improves safety, is more economical in use, and is better for the environment. For a better understanding of your tyre, including knowing how to read your tyre , read our handy hints and tips section.

nozzle

nozzle

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