Nissan 2009 Rogue User Manual download pdf (Page 305)

Black plate (305,1)

Model "S35-D" EDITED: 2008/ 7/ 24

their product.

DOT (Department Of Transportation) Quality

Grades: All passenger car tires must conform to

federal safety requirements in addition to these

grades.

Quality grades can be found where applicable

on the tire sidewall between tread shoulder and

maximum section width. For example:

Treadwear 200 Traction AA Temperature A

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

(1 1/2) times as well on the government course

as a tire graded 100. The relative performance

of tires depends upon 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 char-

acteristics and climate.

TRACTION AA, A, B AND C

The traction grades, from highest to lowest, are

AA, A, B and C. Those grades represent the

tire’s ability to stop on wet pavement as

measured under controlled conditions on spe-

cified government test surfaces of asphalt and

concrete. A tire marked C may have po or

traction performance.

WARNING

The traction grade assigned to this tire

is based on straight-ahead braking

traction tests, and does not include

acceleration, cornering, hydroplaning,

or peak traction characteristics.

TEMPERATURE A, B AND C

The temperature grades A (the highest), B, and

C, representing the tire’s resistance to the

generation of heat and its ability to dissipate

heat when tested under controlled conditions on

a specified indoor laboratory test wheel. Sus-

tained high temperature can cause the material

of the tire to degenerate and reduce tire life, and

excessive temperature can lead to sudden tire

failure. The grade C corresponds to a level of

performance which all passenger car tires must

meet under the Federal Motor Vehicle Safety

Standard No. 109. Grades B and A represent

higher levels of performance on the laboratory

test wheel than the minimum required by law.

WARNING

The temperature grade for this tire is

established for a tire that is properly

inflated and not overloaded. Excessive

speed, under-inflation, or excessive

UNIFORM TIRE QUALITY GRADING

Technical and consumer information 9-25

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