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Having the correct tyre pressure matters

Kwik Fit | Thursday 23rd November 2017 1:31pm

woman checking tyre for wear and damage

Who can remember the last time they had to look under the bonnet of their car? If, like many people, you haven’t looked in a while don’t worry, you’re not alone. With technology the way it is these days, modern cars are just more reliable than they ever used to be. And even the things we should check regularly –  like oil or coolant levels – often slip our mind, rarely considered.

It’s no wonder we’re also less likely than ever to check our tyre pressures regularly. But the truth is we need to because this really matters. Even technology can’t excuse us – even if your car is fitted with a Tyre Pressure Monitoring System (TPMS) you still need to check. 

With driver safety our number one consideration, at Kwik Fit our ambition is to keep you and your family as safe as possible on the road. But we also want to help you save money – and avoid fines. Our latest tyre safety article explains why tyre pressure maintenance is essential, and how to go about check tyre pressures.

Tyre safety first, always

When it comes to tyre pressures, everyone on the Kwik Fit team knows from experience that too much or too little air can be dangerous. 

First under-inflated tyres: these are dangerous because they directly affect the way your car handles, and your ability to stop quickly. And since under-inflated tyres are softer, sharp objects – such as nails and glass – don’t always glance off them, increasing the chances of getting a puncture.

With over-inflated tyres there is an increased risk of high-speed blow-outs since there is no ’give‘ in the tyre shape, resulting in higher stress loads. A high-speed blow-out has obvious consequences that none of us want to have to face.

tyre inflation diagram

As well as being unsafe, incorrectly inflated tyres also wear out unevenly, and as a result need replacing more often. Over time that’s additional expense for you. Uneven tyre wear occurs differently, depending on how the tyres are inflated. Under-inflated tyres wear quicker at the edges, which affects driver handling. Over-inflated tyres wear more at the centre, resulting in a loss of tyre tread where it makes most contact with the road, and where you need the most grip.

Another money saver

As our tyre inflation graphic above shows, under-inflated tyres have more contact with the road, and this results in the generation of more ‘rolling resistance’, or friction. As a result your car has to use more fuel than it would otherwise have to if the tyres were inflated correctly. 

If you’re a bicycle rider you’ll know all about this already. All cyclists know that it’s harder to ride from A to B if your tyres are a little flat. Cycling with under-inflated tyres, the rider feels the extra effort required it their legs and lungs, because they’re having to expend more energy. Well the same is also true when driving a car. If your car’s tyres are under-inflated by 15 PSI (or 1 Bar), you’ll be spending more on your annual fuel bill, and that sucks. And let’s not forget that it’s not just money you’re wasting but precious fuel too, resulting in the unnecessary production of additional CO2 emissions. We all know that everyone needs to reduce their carbon footprint, right? The Kwik Fit team think so.

TPMS – Tyre Pressure Monitoring Systems

tyre pressure monitoring system

As a result of all these reasons, all new vehicles sold in the EU must have Tyre Pressure Monitoring Systems (TPMS) installed. This technology allows sensor valves to automatically monitor each tyre’s pressure. If the tyre pressure falls a warning light on the vehicle’s instrument panel alerts the driver, prompting them to check their pressures manually. 

Don’t forget that if your vehicle has TPMS you also need to ensure that it is maintained by a qualified technician. Remember, a faulty TPMS is an automatic MOT fail. 

Premium tyre manufacturers like Continental are world leaders in the field of driver safety technology, including Tyre Pressure Monitoring Systems and Electronic-Tyre Monitoring Systems (eTis). Driver safety is ingrained throughout their long, illustrious history, and is thr driving force behind their Vision Zero initiative to end driver accidents, injuries and fatalities.

Tyre pressures: how to check yours

woman checking tyres

In the UK, the Department for Transport and Continental Tyres both recommend that you check your tyre pressures at least once a month, even if your vehicle is fitted with TPMS. 

TOP TIP: Tyre pressure readings are more accurate when the tyres are cold. As such, it’s a good idea to check them before you begin a journey. Alternatively, when you fill up at the petrol station, you can use the tyre services available. 

FIND THEM: You’ve probably seen your vehicle’s correct tyre pressure values printed on the inside of the fuel cap, or inside the driver door.

HOW TO: First, remove your tyre’s valve dust cover and attach the air hose. The air hose also measures tyre pressure. Next, either top up or release air until the pressures are correct for all wheels. 

Driver safety is uppermost to us all at Kwik Fit. If you’re unsure how to check your tyre pressures, or how top up or release the air, speak with one of our experienced tyre professionals. You can find your nearest Kwik Fit centre here.


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