An Easy Comparison Guide When Choosing Your Next Tyres
Thursday, 8. August 2019
Tyre technology is improving constantly with some tyres even able to generate electricity that can be used to re-charge the battery. But what about the important factors like fuel efficiency, grip and road noise?
Whilst a budget or mid-range brand may save you a few pounds do you know what you may be giving up in terms of safety or fuel-efficiency. Budget tyres seem to fare poorly in terms of road noise but do they? The tyre markings can tell you a lot.
My thanks to Tyre Shopper for their Guide to EU Tyre Labels:
All new tyres we supply for cars, vans and 4x4s come with EU Tyre Labels.
The labels, mandated in 2012, provide information to help buyers make an informed tyre choice. The labelling covers fuel efficiency, braking distance in wet road conditions, and exterior noise.
Tyres that don’t have the EU tyre labels include off-road, vintage, spare, studded, racing tyres and those with a speed limit of up to 80km/h.
Why do we need EU tyre labels?
EU tyre labels are designed to help drivers who regularly take motorway trips or travel long trips in different weather conditions, to know how well their tyres can handle poor road conditions.
What do EU tyre labels look like?
The tyre rating labels are shown in their respective sections below with more information each.
1 – Fuel Efficiency
Tyres have a fuel efficiency rating from A (most fuel-efficient) to G (least fuel efficient).
The better the fuel efficiency, the lower the cost of motoring and the less harmful Carbon Dioxide pumped into the atmosphere.
Choosing A-rated tyres over G-rated tyres equates to a 7.5% saving in fuel.
An A-rated tyre may use 80 litres less fuel each year (over £110) compared to when using G-rated tyres. This estimate is based on a petrol engine covering 10,000 miles at a cost of £1.40 for every litre of petrol.
Rolling resistance
Tyres indirectly use a fifth of their fuel consumption due to something called ‘rolling resistance’. This is the friction created when the tyres touch the road. Each tyre has a different amount of rolling resistance depending on its shape and composition. They use less fuel and cost less to own.
2 – Wet Grip & Braking Distances
Tyres struggle to grip the road to slow down in wet road conditions, so manufacturers change tyre patterns to improve braking times and reduce the chance of aquaplaning.
Tyres are rated for their combined wet grip and braking distance rating – how long it takes for the vehicle to come to a complete stop in wet road conditions.
All-weather tyres can be used when weather is poor for many weeks and we stock a range of these to suit many types of vehicles.
The EU tyre labels helps drivers choose the tyre with the shortest stopping distance.
Braking distance variation between each wet weather tyre rating from A to G, equates to 3-6 metres. The maximum benefit is 18 metres shorter braking distance based on driving at 50mph in wet road conditions when choosing A-rated tyres over G-rated ones.
3 – External Noises
External noise emissions measure the decibels (dB) created outside the vehicle when that tyre is used in normal driving conditions.
The tyre noise rating label displays either one, two or three audio waves, with the number of decibels shown as a number.
- One wave – three decibels or more under the current noise legislation.
- Two waves – an acceptable noise level for current and future noise legislation.
- Three waves – a tyre that will meet current noise mandated levels, but will fail future limits and need changing in the future.
Are the labels standardised across tyre brands?
Whether you’re looking at Michelin, Continental or other tyre brands, the label information can be compared side-by-side.
This includes the mid-range brands and budget brands. I remember the days when the now premium brand Hankook was a budget brand.
And whilst Nanking are a budget brand could they be going the same way as Hankook, they certainly don’t seem to be far behind when you check the labels.
One final thought. If you have a car on a lease or PCP and intend handing the car back at the end of the agreement check to see if they stipulate the tyres to be fitted when it comes to replacing them.
You don’t want to be forking out for more new tyres when handing the car back because you haven’t complied with the contract.
All cars must now be fitted with tyre pressure monitors but you shouldn’t simply rely upon the accuracy of the monitors and stop checking tyre pressures on a regular basis. Having improperly inflated tyres not only has safety and cost consequences you could end up with points and a fine.
It is the driver’s responsibility to ensure that tyres are in proper condition and penalties for offences are very severe. The penalties for having illegal tyres are currently up to a £2500 fine and 3 penalty points PER TYRE. Two faulty tyres could cost six penalty points, loss of license and a £5000 fine!
Apart from the requirements regarding tyre wear, tread depth, damaged sidewalls, etc, the tyres must be correctly inflated. Regulation 27 section b states “the tyre is not so inflated as to make it fit for the use to which the motor vehicle or trailer is put”. This definition is not very helpful, but correct tyre pressures are vital for safe handling and optimum braking, grip and tyre life.
Low tyre pressures
Cause increased fuel consumption, more air pollution, shorter tyre life and greater risk of tyre failure.
High tyre pressures
Cause reduced comfort, less grip, greater risk of impact tyre damage and reduced stability in braking and cornering.
By Graham Hill