09
The relative performance of tyres de-
5. Maximum permissible
inflation pressure
pends upon the actual conditions of
their use, however, and may depart sig-
nificantly from the norm due to varia-
tions in driving habits, service practices
and differences in road characteristics
and climate.
This number is the greatest amount of
air pressure that should be put in the
tyre. Do not exceed the maximum per-
missible inflation pressure. Refer to the
Tyre and Loading Information label for
recommended inflation pressure.
These grades are molded on the side-
walls of passenger vehicle tyres. The
tyres available as standard or optional
equipment on your vehicle may vary
with respect to grade.
6. Maximum load rating
This number indicates the maximum
load in kilograms and pounds that can
be carried by the tyre. When replacing
the tyres on the vehicle, always use a
tyre that has the same load rating as
the factory installed tyre.
Traction - AA, A, B & C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tyre’s ability to
stop on wet pavement as measured un-
der controlled conditions on specified
government test surfaces of asphalt
and concrete. A tyre marked C may
have poor traction performance.
7. Uniform tyre quality grading
Quality grades can be found where ap-
plicable on the tyre sidewall between
tread shoulder and maximum section
width.
For example:
WARNING
TREADWEAR 200
TRACTION AA
TEMPERATURE A
The traction grade assigned to this
tyre is based on straight-ahead
braking traction tests, and does not
include acceleration, cornering,
hydroplaning, or peak traction
characteristics.
Tread wear
The tread wear grade is a comparative
rating based on the wear rate of the tyre
when tested under controlled condi-
tions on a specified government test
course. For example, a tyre graded 150
would wear one-and-a-half times (1½)
as well on the government course as a
tyre graded 100.
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