Choosing Winter Tires for Canadian Winters

Canadian winters bring heavy snow, slick ice, and temperatures that can fall well below zero. The information below is compiled from publicly available guidance published by Transport Canada and the Tire and Rubber Association of Canada (TRAC). It is general in nature and is not a substitute for advice from a qualified tire professional.

Look for the Three Peak Mountain Snowflake Symbol

Transport Canada recognizes the Three Peak Mountain Snowflake (3PMSF) symbol as the standard marking for tires designed for severe snow conditions. Tires marked only with M+S (Mud and Snow) do not meet the same traction requirements and are generally not considered dedicated winter tires.

Rubber Compounds in Cold Weather

According to TRAC, most all season tire compounds begin to harden at temperatures below roughly 7°C. Winter tire compounds are formulated to remain flexible in the cold, which helps the tread surface conform to the road and maintain grip on snow and ice.

Tread Patterns Designed for Snow and Ice

Winter tires typically use deeper tread depths and a larger number of small slits called sipes. These features help the tread bite into snow and ice, while wider grooves channel slush and water out of the contact patch. The specifics vary by manufacturer.

Studded and Studless Winter Tires

Modern studless winter tires perform well in most Canadian urban and highway conditions. Studded tires can provide additional bite on pure ice but are regulated by province. Alberta currently allows studded tires year round, while other provinces set seasonal windows. Always verify the current rules with Transport Canada or your provincial transportation authority before fitting studs.

A properly chosen winter tire is one of several factors that contribute to safe winter driving, along with cautious speeds, increased following distances, and well maintained brakes and suspension. Consult a certified technician for a recommendation suited to your vehicle.