DOT Tire Quality Grades
US Cars
The tires on all Honda cars meet Federal Safety Requirements. All
tires on the Accord 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.
Three grades are
shown on the
tire side wall.
TIRE
WHEEL RIM
Summary of Contents for 1991 Accord Wagon
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