Rolling Resistance Explained with Ways to Reduce It

Fuel consumption by cars has emerged as one of the major talking points in recent times. With an increase in the awareness about global warming and the automobile industry’s role in it, there is a conscious effort made by most countries, companies and even individuals to reduce fossil fuel consumption as much as possible.

With that in mind, let’s talk about rolling resistance and more specifically, what one can do to reduce it.

What is rolling resistance?

Rolling resistance refers to the resistance exerted by the road against one’s car tyres. When you drive your car, its tyres are in contact with the street which makes slightly deforms the perfectly round shape of the tyres. This causes a specific amount of energy loss, which ultimately translates to your car’s engine consuming more fuel.

Rolling resistance is one of the primary factors that you should consider while buying new tyres. Consider this- it is one of the three parameters mentioned in the EU tyre label. That must give you a glimpse of how vital rolling resistance is for the selection of your tyres.

There can be many reasons behind the high rolling resistance of tyres. Tyre construction, materials used and inflation pressure are all determinants of rolling resistance of tyres.

Ways to reduce resistance

As unlikely as it may sound, there are certain things that you can do to reduce the rolling resistance of your tyres. The most obvious way is, of course, buying tyres with low rolling resistance. Nowadays, every tyre manufacturer has a selection of ‘green’ or ‘eco-friendly’ tyres which have meagre resistance.

You can find a wide range of such tyres at garages like Tyreman Merthyr. They also perform essential tyre services like wheel alignment and wheel balancing in Merthyr Tydfil, which are also critical from the rolling resistance point of view, as you’ll discover momentarily.

There are a few other things that you can incorporate into your driving habits for a lower resistance of your tyres.

  • Always maintain the manufacturer recommended air inflation pressure. Low inflation pressure leads to a heavier deformation of tyres, leading to higher resistance.

  • Do not exceed the load capacity of your car tyres in Merthyr Tydfil. Excess load puts immense pressure on your already stressed tyres. It also puts more pressure on the engine. Both these lead to higher fuel consumption.

  • Use 4×4 tyres when you go off-roading. Passenger car tyres are not suitable for driving on rough terrains. It increases their rolling resistance as well.

  • Buy tyres which have an above-average rolling resistance EU rating. Ideally, you should buy tyres which are rated above ‘D’. A tyre with EU rating ‘A’ consumes 7.5% less fuel than one rated ‘G’.

Note that the tread depth of a tyre also has some bearing on its rolling resistance. As a tyre wears down, its resistance also decreases. However, it comes at the cost of handling and braking performance.

Choose your next set of tyres wisely and reduce your carbon footprint on the planet. Remember that in the fight against global warming, every ounce of fuel matters.

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