Department Of Transportation Uniform Tire Quality Grades

The following tire grading categories were established by the National Highway Traffic Safety Administration. The specific grade rating assigned by the tire’s manufacturer in each category is shown on the sidewall of the tires on your vehicle.

All passenger car tires must conform to Federal safety requirements in addition to these grades.

See also:

Tire Rotation Recommendations
The tires on the front and rear of your vehicle operate at different loads and perform different steering, handling, and braking functions. For these reasons, they wear at unequal rates. These ef ...

Cooling System
To reduce potential for engine and transmission overheating, take the following actions: − City Driving When stopped for short periods of time, shift the transmission into NEUTRAL and incr ...

Exterior
I love the clean, boxy, rugged look of the Liberty. From its big, round headlights to its chunky tires, the Liberty screams "Jeep." Its abrupt exterior angles contribute to the Liberty's ...