About Winter Tyres and Summer Tyres
As I have said on many occasions. British drivers are coming to terms. With the fact that fitting winter tyres in November early December will increase safety.Hence, for themselves and the other road users.Especially, in the severe winter weather.
It is also advisable to re-fit your summer tyres.Hence, after the winter season has finished, around Easter time, or at least after March. The reason being, because there are two differences between summer tyre and winter tyres.Thus, that are easy to explain. The one difference that is most obvious is that the tread pattern of the winter tyre.Of course, is made up of millions of sipes, these are tiny slits in the tyres tread.These, get rid of the water, snow and slush that you will encounter at some stage of the winter period.
The summer tyre tread pattern.Therefore, is of a simpler design. For this reason, performs differently to the winter tyre. Drivers who get stuck in the snow know this to their cost.
The tyre compound is the second main difference. The winter tyre compound has additional chemicals in the mix. Including “silica”; this keeps the tyre flexible in freezing weather. The summer tyre does not have this additive in the compound and so when the temperature drops below 7 degrees C then the tyre casing becomes rigid, and they do not handle well.Especially, on a beautiful hot sunny day.
And so to finalise, Continental are correct in saying that it is best practise to change back to summer tyres are to rotate summer and winters at the end of the relevant seasons.