Precision Automotive & Transmission is proud to be an authorized Toyo Tire dealer and have a large inventory of Toyo Tires as well as these other great brands in stock.

Reading A Tire Sidewall

A tire’s sidewall is simply the outer and inner “walls” on the sides of a tire, if facing a tire on its side. Every sidewall has its own unique information that is divided into three main sections:

1. Tire Specifications

This describes the fundamental characteristics of your tire. Size, construction, speed rating and more. 

2. Department of Transportation Safety Code

This assures that your tire complies with all Department of Transportation (DOT) safety standards. After the DOT insignia is your tire’s identification number, which begins with the tire’s manufacturer and plant code where the tire was manufactured (two numbers or letters). The ninth and tenth characters tell the week the tire was manufactured. The final number(s) signifies the year the tire was manufactured.

Department of Transportation (DOT) safety standards

3. UTQG Code

The Uniform Tire Quality Grading (UTQG) was established by the National Highway Traffic Safety Administration (NHTSA) to test tires following government prescribed test methods and then grade each tire on three main components:

The Uniform Tire Quality Grading (UTQG)

4. Icons

Some tires have unique benefits, as showcased with specific icons. For example, the letters M and S (M +S) indicate that the tire meets the Rubber Manufacturers Association’s standards for a mud and snow tire. The letters can be found in the following combinations M+S, M/S, and M&S. All-season tires carry this mark.