If you have invested in winter tires because you live in a place that experiences severe winter weather with both snow and ice, you should know that winter tires should not be used in the summer. All-season tires, on the other hand, are only suitable for spring, summer, and fall but not perfect for winter. All-season tires can be placed on the vehicle once the final snow has melted and the roads remain dry.
When you buy winter tires like the Nokian Nordman 7, they are meant to be used only during the winter months. Using these tires during the other seasons is not recommended. In some states, it is against the law to use studded tires after a certain date. Winter tires — especially studded winter tires — remain the best choice for harsh winters with lots of snow and ice, where they provide the ultimate traction, especially lateral traction. Even for an SUVs the best choice for severe winter weather are SUV studded tires.
All winter tires, whether studded or non-studded, are designed to maintain better traction in extreme cold and on icy, snowy or slush-filled roads. Their rubber compounds are softer and thereby remain more flexible, allowing the tire to conform to the road in cold conditions. The same flexible rubber compound that works well in winter does not dissipate heat well and will wear down faster on dry summer roads. When you use them on hot summer roads, the risk of overinflating or blowing out will be much higher. The specialized rubber compound and tread design of winter tires are not designed for optimal warm climate performance or wear.
The softer rubber compound and tread design of winter tires also create more rolling resistance when driven on dry roads, causing you to use more fuel and wear down the tires faster. This is not a very ecological or economical solution. If the idea is not to change tires after the winter season, then the second best choice to provide safe driving in winter conditions would be to invest in an all-weather tire. Unlike all-season tires, all-weather tires are marked with the threepeak mountain snowflake symbol, like winter tires. The 3PMSF symbol indicates that the tire has a severe snow service rating, which means that it has met required performance criteria in snow testing.