IF YOU NEED CONSUMER ASSISTANCE
411
Treadwear
WARN ING!
The tread wear grad e is a comparative rating based on the
wear rate of the tire when tested und er controlled con-
ditions on a specified governm ent test course. For ex-
ample, a tire grad ed 150 would wear one and a half (1
The traction grad e assign ed to this tire is based on
straigh t-ah ead brak ing traction tests, and does not
include acceleration , corn erin g, hydrop lan ing, or
peak traction characteristics.
1/
2) times as well on the governm ent course as a tire
grad ed 100. The relative perform ance of tires depend s
upon the actu al cond itions of their use, how ever, and
may depart significantly from the norm due to variations
in driving habits, service practices and differences in road
characteristics and climate.
Temperature Grades
The tem peratu re grad es are A (the highest), B, and C,
rep resenting the tire’s resistance to the generation of heat
and its ability to dissip ate heat when tested und er
controlled cond itions on a specified ind oor laboratory
test wheel. Sustained high tem peratu re can cause the
material of the tire to degenerate and red uce tire life, and
excessive tem peratu re can lead to sudden tire failu re. The
grad e C corresp ond s to a level of perform ance which all
passenger car tires must meet und er the Federal Motor
Vehicle Safety Stand ard No. 109. Grad es B and A rep re-
sent higher levels of perform ance on the laboratory test
wheel than the minim um requ ired by law.
Traction Grades
The traction grad es, from highest to lowest, are AA, A, B,
and C. Those grad es rep resent the tire’s ability to stop on
wet pavem ent as measu red und er controlled cond itions
on specified governm ent test surfaces of asp halt and
concrete. A tire marked C may have poor traction perfor-
mance.
9
| Categories | Chrysler 300 Manuals, Chrysler Manuals |
|---|---|
| Model Year | 2007 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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