From 1 November, 2012, all tyres sold in the EU must be labelled in compliance with a standardised system.
The EU tyre label informs customers of three properties of the tyre which it represents:
- Wet grip
- External tyre noise.
- Fuel Efficiency
One of the factors that affects the fuel efficiency of a car is the rolling resistance of its tyres. A tyre becomes deformed when rotating which influences its ability to roll, resulting in a loss of energy in the form of heat.
The higher the deformation, the higher the tyre's rolling resistance, and consequently the more fuel that is required to move the vehicle forward. So, lower rolling resistance means lower fuel consumption and therefore lower vehicle emissions.
This is defined by classification ranging from A (most efficient) to G (least efficient).
This figure describes the grip properties on a wet road surface. The better the wet grip, the shorter the braking distance. This is defined by a class ranging from F (longest braking distance) to A (shortest braking distance) when braking at 80 km/h. The effectiveness depends on the vehicle and the driving conditions.
External tyre noise
The tyre label specifies the level of external rolling noise in decibels (dB) and as one, two or three sound waves.
- One black bar indicates that the external rolling noise is at least 3 dB lower than the EU threshold applicable from 2016.
- Two black bars indicate that the external rolling noise is equal to or at most 3 dB lower than the EU threshold applicable from 2016.
- Three black bars indicate that the external rolling noise does not comply with the threshold applicable from 2016.
- Note - External rolling noise does not necessarily represent the noise you will hear inside the vehicle.
Actual fuel savings and road safety depend heavily on the behaviour of the individual driver, and in particular the following points should be taken into account:
- Economical driving can significantly reduce fuel consumption
- Tyre pressures should be regularly checked to optimise wet grip and fuel efficiency
- Speed limits should always be strictly respected.