1992 Honda Accord Owner's Manual - Page 151

1992 Honda Accord Manual

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DOT Tire Quality Grades US Cars The tires on your car meet Federal Safety Requirements. All tires are also "graded" according to Department of Transportation (DOT) standards for tread wear, traction and temperature. Three grades are shown on the tire sidewall. TIRE WHEEL RIM Tread Wear The tread wear 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 variations in driving habits, service practices and differences in road characteristics and climate. Traction The traction grades, from highest to lowest, are A, B, and C, and they 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 performance. The traction grades assigned are based on braking (straight ahead) traction tests and do not include cornering (turning) traction. (cont'd)

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DOT Tire Quality Grades
US Cars
The tires on your car meet Federal Safety Requirements. All tires
are also "graded" according to Department of Transportation (DOT)
standards for tread wear, traction and temperature.
Tread Wear
The tread wear 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 variations in driving habits, service practices and
differences in road characteristics and climate.
Traction
The traction grades, from highest to lowest, are A, B, and C, and
they
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 performance.
The traction grades assigned are based on braking (straight ahead)
traction tests and do not include cornering (turning) traction.
(cont'd)
Three grades
are shown on the
tire sidewall.
TIRE
WHEEL RIM