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:

Safety
WARNING! • Improperly inflated tires are dangerous and can cause collisions. • Under-inflation increases tire flexing and can result in over-heating and tire failure. • Over-inflation re ...

Tire Terminology And Definitions
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2010 Jeep Patriot review
I get why people love their Jeeps: They're rough and tumble and go anywhere from a weekend at the beach to an extreme off-roading adventure. However, the 2010 Jeep Patriot feels cheap, sluggish an ...