UNIFORM TIRE QUALITY GRADING
DOT (Department Of Transportation)
Quality Grades: All passenger car tires
must conform to federal safety require-
ments in addition to these grades.
Quality grades can be found where ap-
plicable on the tire sidewall between
tread shoulder and maximum section
width. For example:
TRACTION AA, A, B AND C
.
For emergency towing proce-
dures refer to “Towing recom-
mended by NISSAN” in the “In
case of emergency” section of
this manual.
The traction grades, from highest to low-
est, are AA, A, B, and C. Those 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.
Continuously Variable Transmis-
sion (CVT)
To tow a vehicle equipped with a CVT, an
appropriate vehicle dolly MUST be placed
under the towed vehicle’s drive wheels.
Always follow the dolly manufacturer’s
recommendations when using their pro-
duct.
Treadwear 200 Traction AA Tempera-
ture A
TREADWEAR
WARNING
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 the actual conditions
of their use, however, and may depart
significantly from the norm due to varia-
tions in driving habits, service practices
and differences in road characteristics
and climate.
The traction grade assigned to this
tire is based on straight-ahead brak-
ing traction tests, and does not
include acceleration, cornering, hy-
droplaning, or peak traction charac-
teristics.
Manual Transmission (MT)
.
Always tow with the Manual Trans-
mission in Neutral.
.
Your vehicle speed should never ex-
ceed 70 MPH (112 km/h) when flat
towing your vehicle.
TEMPERATURE A, B AND C
The temperature grades are A (the high-
est), 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 speci-
fied indoor laboratory test wheel. Sus-
tained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive tempera-
ture can lead to sudden tire failure. The
grade C corresponds to a level of perfor-
.
After towing 500 miles, start and idle
the engine with the transmission in
Neutral for two minutes. Failure to idle
the engine after every 500 miles of
towing may cause damage to the
transmission’s internal parts.
Technical and consumer information 10-17
CarManuals2.com
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