Tires are not safe and should be replaced when the tread is worn down to 2/32 of an inch. 5 On Your Side stopped by Firestone to talk with Tim Liebig. At Firestone, they have a special tread gauge to ...
The study also found that winter tires delivered better traction on ice- or snow-covered road surfaces at -30 C than all-season tires did at 4 C. Transport Canada recently tested stopping ... North ...