Authorities say that if you drive in a locale that on a regular basis gets critical snowfall, a dedicated winter tire is a need to – delivering 20 percent additional grip than even the finest all-season tires on snow and ice. There’s also the security factor and for those who are watching their cash, winter tires can reduced your insurance prices. Most B.C. highways call for passenger vehicles to use M+S or mountain/snowflake tires, and commercial vehicles to carry chains involving October 1 and March 31. M+S tires are a winter tire for compliance with existing highway signage requirements. To be a lot more specific, as soon as the temperature drops to seven degrees Celsius, the rubber compound in all-season tires grows stiffer – stiff enough to bring about complications.