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
B
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.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM original
equipment
parts.
This way, you will be sure to have
the right wheel, wheel bolts and wheel nuts for your
Pontiac model.
6-51
To Next Page
Loading...
Need help?
General
