Explore the Alphabet Soup on the Sidewalls of Your Tires

What do all those letters, numbers and dashes on the sides of your tires mean? All tires go through a thorough screening process for safety and standards. The procedure is monitored by the U.S. Department of Transportation (DOT) and the standards are set and maintained by the Uniform Tire Quality Grading (UTQG) code. Let the Fort Mill Ford team help you decipher the code!

The first letter tells what vehicle the tire is for. For example, P is a passenger car tire. The section width is measured in millimeters. For example, 245. Diameter is measured in inches, which states the wheel a tire fits, and the aspect ratio is the height of the tire sidewall.

When getting new tires, you will want to cross-reference the tire's load index with your manufacturer’s specification. The load index states the maximum weight capacity the tire can carry. Installing tires that cannot carry the load may cause damage to the vehicle.

Stop by our auto parts shop in Fort Mill, SC and let our service technicians help you select the right tire for your car or truck.

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