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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.
Treadwear
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
significantly from the norm due to variations in driving
habits, service practices, and differences in road charac-
teristics and climate.
Traction Grades
The Traction grades, from highest to lowest, are AA, A, B,
and C. These grades represent the tire’s ability to stop on
wet pavement, as measured under controlled conditions
on specified government test surfaces of asphalt and
concrete. A tire marked C may have poor traction perfor-
mance.
9
IF YOU NEED CONSUMER ASSISTANCE
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Содержание 2013 Durango
Страница 1: ...Durango O W N E R S M A N U A L 2 0 1 3 ...
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Страница 9: ...1 INTRODUCTION 7 ...
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Страница 162: ...160 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
Страница 163: ...3 UNDERSTANDING THE FEATURES OF YOUR VEHICLE 161 ...
Страница 164: ...162 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
Страница 185: ...Active Head Restraint Normal Position Active Head Restraint Tilted 3 UNDERSTANDING THE FEATURES OF YOUR VEHICLE 183 ...
Страница 308: ......
Страница 314: ...INSTRUMENT CLUSTER 312 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Страница 439: ...Operating Tips Chart 4 UNDERSTANDING YOUR INSTRUMENT PANEL 437 ...
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Страница 513: ...5 STARTING AND OPERATING 511 ...
Страница 556: ...Without Weight Distributing Hitch Incorrect With Weight Distributing Hitch Correct 554 STARTING AND OPERATING ...
Страница 677: ...INDEX 10 ...
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