The DOT requires tire manufacturers to grade passenger car tires based
on three performance factors: Treadwear, Traction and Temperature
resistance. (See the “Uniform Tire Quality Grading (UTQG)” section for
more details.)
The sidewall also shows the type of cord and the number of plies in the
sidewall and under the tread.
TYPICAL LIGHT TRUCK TIRE
UNIFORM TIRE QUALITY GRADING (UTQG)
The Uniform Tire Quality Grading (“UTQG”) standards are intended to
assist you in making an informed choice in your purchase of passenger
car tires by providing information indicating relative performance in the
areas of treadwear, wet stopping traction, and temperature resistance. All
passenger car tires must conform to federal safety requirements in
addition to these grades.
NITTO TIRE
310
