Winter Tires vs. All-Season Tires



Winter Tires vs. All-Season Tires


Many car owners get confused with all-season tires and winter tires. The confusion arises due to less knowledge about these tires and not knowing the main differences between them. We have tried to help clear the confusion by comparing winter tires and all-season tires for you.


Rubber Composition


All tires are made of rubber but they are not the same. Each tire type has a different rubber composition. The main difference between all-season tires and winter lies in their rubber composition. All-season tires have a general rubber composition that includes natural and synthetic rubber, carbon black and few chemical compounds. Winter tires have special rubber composition that include natural and butadiene rubber, silica, aromatic oil, carbon black and a specific silane coupling agent. The special rubber composition makes the winter tire perfect for extreme cold weather.


Temperature


When you think of winter tires, it is generally related to temperature and snow. All-season tires don’t perform well below 45°F. As the temperatures drops (below 45°F), the general rubber composition of the all-season tire begins to harden. At subzero temperatures, the all-season tire behaves like a hardened plastic ball which only rolls on an icy road. The hardened rubber does not give any traction performance and your car is more likely to slip on icy roads. The special composition of winter tires keep the tread rubber soft even at extreme cold temperatures.


Tread Pattern


The second main difference between all-season tires and winter tires is the tread pattern. Winter tires have a directional tread pattern that consists of a central stability rib. The tread pattern on both sides works for active water evacuation while the central rib provides straight line stability. Winter tires have sipes that give tires abundant sharp edges to cut into the snow. According to tire experts, siping also increases traction performance.


All-season tires have an asymmetrical pattern which means the tread pattern on the outside shoulder and inner shoulder is different. The tread pattern on the outer shoulder promotes durability and cornering stability. The tread pattern on the inner shoulder works to expel water and reduce the aquaplaning effect. Most all-season tires have an asymmetrical pattern because it offers durability and performance diversity.


Braking Performance


Brakes alone are not good enough to stop your car. When you are trying to stop or turn, the limit is determined by the traction capabilities of your car’s tire. In extremely cold weather, tires without winter tread patterns are more likely to slide.


Is it Safe to Drive with All-Season Tires in Winter?


The question is a bit tricky and there is no straightforward answer. Whether or not all-season tires are suitable for winter depends on various factors. If the region you live in is mountainous where there is little winter road maintenance, get winter tires. If you don’t go off-road and there are no snow covered roads in the winter in your region, then your car is fine with all-season tires.


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