If you have P245/50ZRl6 or P27940ZR17 Goodyear
Eagle
GS-C tires, they must roll in a certain direction
for the best overall performance. The direction is shown
by an arrow on the sidewall. Because these tires are
directional, they should be rotated
as shown here. These
tires should
only be moved from front to rear and rear to
front on the same side of the vehicle.
Don’t include the compact spare tire in your tire
rotation.
After the tires
have been rotated, adjust the front and
rear inflation pressures as shown on the Tire-Loading
Information label. Make
certain that all wheel nuts
are properly tightened. See “Wheel Nut Torque” in
the Index.
I
Rust or dirt on a wheel, or on the pa; cJ to which
it is fastened, can make wheel nuts become loose
after a time.
The wheel could come off and caus’e
an accident.
When you change a wheel, remove
any rust or dirt frolm places where the wheel
attaches to the vehicle.
In an emergency, you can
use
a cloth or a paper towel to do this; but be
sure
to use a scraper or wire brush later, if you
need to,
to get all the rust or dirt off. (See
“Changing a Flat Tire” in the Index.)
6-52
Mixing tires could cause you to lose control while
driving.
If you mix tires of dif€erent sizes or types
(radi,al
and bias-belted tires), the vehicle may not
handle properly, and
you could have a crash.
Using tires of different sizes may also cause
damage to
your vehicle. Be sure to use the same
size and type tires on all wheels.
It's
all right to drive with your compact spare,
though. It was developed for use 0n your vehicle.
Uniform Tire Quality Grading
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance, (This
applies
only to vehicles sold in the United States.) The
grades are molded
on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading system
does not apply
to deep tread, winter-type snow tires,
space-saver or temporary
use spare tires, tires with
nominal rim diameters
of 10 to 12 inches (25 to 30 cm),
or to some lirnited-pro'duction tires.
While the tires available
on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to Federal safety
requirements and additional General Motors Tire
performance Criteria
(TPC) standards.
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 a half
(1 1/2) times as well on the gov'esnrnent 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.
6-54
Traction -- A, B, C
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.
Warning: The traction grade assigned to this tire is based
on braking (straightahead) traction tests and does not
include cornering (turning) traction.
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
Pontiac 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
CM
original equipment parts. This way, you will be sure to
have the right wheel, wheel. bolts and wheel nuts
for
your Pontiac model.
Using the wrong replacement wheels, wheel bolts
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires
lose air and make you
lose control. You could have a collision in which
you or others could be injured.
Always use the
correct wheel, wheel bolts and wheel nuts
for
replacement.
NOTICE:
~
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance
and tire or tire
chain clearance to the body and chassis.
See “Changing a Flat Tire” in the Index for more
information.
6-56
Used Replacement Wheels
Putting
a used wheel on your vehicle is
dangerous. You can’t know how
it’s been used or
how
far it’s been driven. It could fail suddenly
and cause an accident.
If you have to replace a
wheel, use a new GM original equipment wheel.
Tire Chains
NOTICE:
If your Pontiac has P235/55R16, P245/50ZR16 or
P275/40ZR17 size tires, don’t use tire chains.
They can damage your vehicle.
If you have other tires, use tire chains only where
legal and only when you must. Use only
SAE
Class “S” type chains that are the proper size for
your tires. Install them on the rear tires and
tighten them
as tightly as possible with the ends
securely fastened. Drive slowly and follow the
chain manufacturer’s instructions.
If you can
hear the chains contacting your vehicle, stop
and retighten them.
If the contact continues,
slow down until
it stops. Driving too fast or
spinning the wheels with chains
on will damage
your vehicle.
6-57
Cleaning Your Convertible Top
Your c’onvertible top should be cleaned often. If you use
an automatic car wash, use one with water jets and
hanging cloths. High pressure car washes may cause
water
to enter your vehicle.
When you hand wash the top,
do it in partial shade. Use
a mild
soap, lukewarm water and a soft sponge, A
chamois or cloth may leave lint on the top, and a brush
can chafe the threads in the top fabric. Don’t use
detergents, harsh cleaners, solvents or bleaching agents.
When you clean the top, put one hand under it to
support it. Wet the entire vehicle and wash the top
evenly to avoid spots or rings. Let the soap remain on
the fabric for
a few minutes. When the top is really
dirty, use a mild foam-type cleaner. Thoroughly rinse
the entire vehicle, then let
the top dry in direct sunlight.
Aluminum or Chrome Wheels
(I€ Equipped)
Keep your wheels clean using a soft clean cloth with
mild soap and water. Rinse with clean water. After
rinsing thoroughly,
dry with a soft clean towel. A wax
may then be applied.
The surface
of these wheels is similar to the painted
surface
of your vehicle. Don’t use strong soaps,
chemicals, abrasive polishes, abrasive cleaners
or
abrasive cleaning brushes on them because you could
damage the surface. You may use chrome polish on
chrome wheels, but avoid any painted surface of the
wheel, and buff off immediately after application.
Don’t
take your vehicle through an automatic car wash
that has silicon carbide tire cleaning brushes. These
brushes can also damage the surface
of these wheels.
To protect the convertible top:
After you wash the vehicle, make sure the top is
completely
dry before you lower it.
Don’t get any cleaner on the vehicle’s painted finish;
it
could leave streaks.
~f YOU decide to go through an automatic car wash,
ask the manager if the equipment could damage
your top.
6-64
Tires Sheet Metal Damage
To clean
your tires, use a stiff brush with a tire cleaner.
NOTICE:
When applying a tire dressing always take care to
wipe off any overspray or splash from all painted
surfaces on the body or wheels of the vehicle.
Petroleum-based products may damage the
paint finish.
If your vehicle is damaged and requires sheet metal
repair
or replacement, make sure the body repair shop
applies anti-corrosion material to the parts repaired or
replaced to restore corrosion protection.
Finish Damage
Any stone chips, fractures or deep scratches in the finish
should be repaired right away. Bare metal will corrode
quickly
and may develop into a major repair expense.
Minor chips and scratches can be repaired with touch-up
materials available from your dealer or other service
outlets. Larger areas
of finish damage can be corrected
in your dealer's body and paint shop.
Appearance Care Materials Chart
PART NUMBER USAGE DESCRIPTION SIZE
994954 Exterior
Polish
Polishing Cloth - Wax Treated 23 in. x 25 in. -
1050004
Exterior wash
Wash and Wax
Concentrate 16
02. (0.473 L) 1052870 Cleans
grease, grime and smoke
film Glass Cleaner 23 oz. (0.680 L) I050427
Spot and stain removal
Vinyl
Cleaner 32 oz. (0.946 L) 1050214 Exterior
cleaner and polish
Magic Mirror Cleaner Polish
1 gal. (3.785 L) 1050200
Removes soil and black marks
White Sidewall Tire Cleaner
16 02. (0.473
L)
1050 174 Removes rust and corrosion
Chrome Cleaner and Polish 16
oz. (0.473
L)
10501 73
Also removes old waxes and polishes
Tar and Road Oil
Remover 16 oz. (0.473 L) 10501 72 Shines vehicle without scratching Chamois
2.75
sq. ft.
~
10529 18**
16 02. (0.473 L) 1052925 Protects vinyl, leather and rubber
Armor
All TM Protector 8 oz. (0.237 L)
Attracts and absorbs soils Capture Dry Spot Remover
8 oz. (0.237 L)
1052930 Spray
on wheel cleaner
Wheel Cleaner
16 oz. (0.473
L)
1052929 Cleans
vinyl, cloth,
tires and mats Multi-Purpose Powdered Cleaner
12345002**
16 oz. (0.473 L) Armor All TM Cleaner Cleans vinyl, leather and rubber
12345725
Spot cleans paint and gives high luster
Finish Enhancer
16
oz. (0.473
L)
12377966 Protects finish and removes
fine scratches
Cleaning
Wax
16
02. (0.473 L)
12377964 Shines tires
Silicone Tire
Shine 12
oz. (0.354 L)
See your General Motors Parts Department for these products. *‘N Not recommended for use on instrument panel vinyl.
See
“Fluids and Lubricants” in the Index.
6-67