Incorrect tyre pressure is one of the most common — and most dangerous — car maintenance mistakes. Here's everything you need to know.
Under-inflated tyres are responsible for thousands of accidents and millions in wasted fuel every year in the UK. Tyre pressure is one of those simple maintenance tasks that's easily overlooked — but getting it right makes a significant difference to safety, fuel economy and tyre longevity.
How to Find the Correct Tyre Pressure for Your Car
The correct tyre pressure for your vehicle is specified by the manufacturer — not by the tyre. You'll find it on a sticker inside the driver's door jamb, in the fuel filler cap, or in your owner's manual. It's usually expressed in PSI or bar. Note that front and rear pressures are often different.
How Often Should You Check Tyre Pressure?
Check tyre pressure at least once a month and always before a long journey. Tyres naturally lose approximately 1 PSI per month. Check when tyres are cold — driving heats the air inside and gives a falsely high reading.
Consequences of Under-Inflation
- Increased fuel consumption
- Excessive wear on tyre shoulders
- Reduced steering response
- Greater risk of blowout at speed
- Longer braking distances
Consequences of Over-Inflation
- Harsher ride quality
- Reduced grip — less tyre contact with road
- Wear concentrated in centre of tread
- Greater risk of damage from potholes
TPMS warning light on? Or need new tyres? Call Local Mobile Tyre Guys on 020 3910 1898 — we come to you anywhere in North London.
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