All Season Tires Description

All Seasons radial tires qualify as snow tires, with a 37 percent higher average rating for snow traction than non-All Seasons radial tires. Other performance areas, such as wet traction, rolling resistance, tread life, and air retention, were also improved slightly. This was done by improvements in both tread design and tread compounds. These tires are identified by an M+S molded in the tire sidewall following the size. The suffix MS is also molded in the sidewall after the TPC specification number.

All vehicles now use P-metric sized tires. P-metric tires are available in two load ranges standard load (35 psi maximum) and extra load (41 psi maximum). Most passenger vehicle tires are standard load.

Most P-metric tire sizes do not have exact corresponding alpha-numeric tire sizes. For example a P205/75R15 86H is not exactly equal in size and load carrying capacity to an FR78-15. For this reason, replacement tires should be of the same TPC specification number (same size, load range, construction) as those originally on the vehicle. If P-metric tires must be replaced with other sizes, a tire dealer should be consulted. Tire companies can best recommend the closest match of alpha-numeric to P-metric sizes within their own tire lines.