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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
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IF YOU NEED CONSUMER ASSISTANCE
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Содержание CHASSIS CAB 2015
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Страница 7: ...1 INTRODUCTION 5 ...
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Страница 32: ...Remove Screw From Transmitter Case Separating Transmitter Case 30 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE ...
Страница 199: ...INSTRUMENT CLUSTER BASE 4 UNDERSTANDING YOUR INSTRUMENT PANEL 197 ...
Страница 200: ...INSTRUMENT CLUSTER PREMIUM 198 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Страница 308: ...Control Setting Suggestions For Various Weather Conditions Operating Tips Chart 306 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Страница 312: ...Uconnect 5 0 Uconnect 8 4A 8 4AN 310 UNDERSTANDING YOUR INSTRUMENT PANEL ...
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Страница 393: ...5 STARTING AND OPERATING 391 ...
Страница 433: ...Without Weight Distributing Hitch Incorrect With Weight Distributing Hitch Correct 5 STARTING AND OPERATING 431 ...
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Страница 559: ...MAINTENANCE SCHEDULES CONTENTS 䡵 MAINTENANCE SCHEDULE 558 Maintenance Chart 560 8 ...
Страница 577: ...INDEX 10 ...