What is the validity period of snow tires?

[Ruth]

Snow tires have a service life of 3-4 years or 50,000-60,000 kilometers. Below is relevant information about snow tires: 1. Generally, snow tires can be used for 3-4 winters, but the specific usage conditions of the tires are the most important factor. Snow tires are specifically designed for use on snow and ice-covered roads, with the purpose of increasing grip on the road surface, enhancing friction, and enabling vehicles to drive better on snow and ice, ensuring a certain level of passability and safety. 2. Snow tires can be changed when the temperature drops below 7°C, and there's no need to wait until it snows or the roads freeze, as it might be too late by then. For regular tires, when the temperature drops, the rubber compound hardens, reducing grip and braking performance, which can make driving more dangerous. Snow tires, however, are different; when the temperature drops, the tread of snow tires becomes softer, increasing grip on the ground and providing better handling.