Tires designed for use in winter conditions generally have tread patterns, structure and materials to give superior performance. These tires are marked with the “M+S” designation plus a mountain/snowflake symbol.
When you change to winter tires, be sure they are the same size and construction type as the other tires on the vehicle.
Winter tires should be used on all four wheel positions.
In areas where heavy snowfalls are frequent, many drivers carry chains for use in emergencies, or have their tire dealer apply studded snow tires. Most provinces have time limits on the use of studs. Before installing studded tires, check the regulations in your area. If studded tires are applied to the front axle, they also must be applied to the rear axle.
If you use chains, make sure they are the proper size and type for your tires, otherwise they may damage the tire sidewall and cause tire failure.