In article , Wolf K
wrote:


First line of defence is winter tires. Recent tests by the Ontario Dept
of Highways confirmed earlier results: braking deteriorates from around
+5C (about 40F) on down. By the time the roads are icy, summer and "all
season" and "all weather" tires are hockey pucks. Some people like
studs, but they wear into round nubbins a little too quickly for my taste.

winter tires may help, but the first line of defense is knowing how to
drive in slippery conditions (which also helps in dry conditions, just
not as often).

even the grippiest winter tires won't help when the vehicle loses
traction.