The suggested rotation method is the “rearward cross”
shown in the following diagram. This rotation pattern does
not apply to some directional tires that must not be
reversed.
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 manu-
facturer 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.
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 condi-
tions on specified government test surfaces of asphalt
and concrete. A tire marked C may have poor traction
performance.
Tire Rotation
8
SERVICING AND MAINTENANCE 379
Summary of Contents for Challenger 2018
Page 4: ......
Page 11: ...REAR VIEW Rear View 1 Rear Lights 2 Trunk 2 GRAPHICAL TABLE OF CONTENTS 9 ...
Page 14: ......
Page 76: ...Operating Tips Chart 74 GETTING TO KNOW YOUR VEHICLE ...
Page 233: ...Distance Setting 3 Bars Long Distance Setting 2 Bars Medium 6 STARTING AND OPERATING 231 ...
Page 246: ...Slow Tone Solid Arc Fast Tone Flashing Arc 244 STARTING AND OPERATING ...
Page 318: ......
Page 400: ......
Page 488: ......
Page 495: ...INDEX 12 ...