Department Of Transportation Uniform Tire Quality Grades; Treadwear - Dodge 2016 Durango Owner's Manual

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IF YOU NEED CONSUMER ASSISTANCE 711

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 vehicle tires must conform to Federal

safety requirements in addition to these grades.

The Treadwear grade is a comparative rating, based on

the wear rate of the tire when tested under controlled

conditions on a specified government test course. For

example, a tire graded 150 would wear one and one-half

times as well on the government course as a tire graded

100. The relative performance of tires depends upon the

actual conditions of their use, however, and may depart

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