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Instruments
Operation
and controls
Consumer information
Consumer information
This has been prepared as required of all manufactures
of passenger cars under Title 49, Code of U.S. Federal
Regulations, Part 575 pursuant to the "National Traffic
and Motor Vehicle Safety Act of 1966".
Uniform tire quality grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Tread wear 200
All passenger vehicle tires must conform to federal
safety requirements in addition to these grades.
Instrument
Driving
cluster display
Traction AA
Temperature A
Practical hints
Car care
258
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
/
) times as well on the government course as a tire
2
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.
Technical
Index
data
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