Temperature
-
A,
B,
C
The temperature grades are
A
(the highest),
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 specified indoor
laboratory test wheel. Sustained high temperature
can cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead
to
sudden tire failure. The grade
C
corresponds
to
a
level of performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard
No.
109.
Grades
6
and
A
represent higher levels of
performance on the laboratory test wheel than the
minimum required by law.
Warning: The temperature grade for this tire is
established for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
Wheel
Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory
to
give you the longest tire life
and best overall performance.
Scheduled wheel alignment and wheel balancing are
not needed. However,
if
you notice unusual tire wear or
your vehicle pulling one way or the other, the alignment
may need
to
be reset.
If
you notice your vehicle
vibrating when driving on a smooth road, your wheels
may need
to
be rebalanced.
Wheel
Replacement
Replace any wheel that is bent, cracked or badly rusted
or corroded. If wheel nuts keep coming loose, the
wheel, wheel bolts and wheel nuts should be replaced.
If the wheel leaks air, replace it (except some
aluminum wheels, which can sometimes be repaired).
See your dealer
if
any of these conditions exist.
Your dealer will know the kind of wheel you need.
5-58
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