1/2) times as well on the government 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.
Traction - A, B, C
The traction grades, from highest to lowest are: A, B,
and C. 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 (straight-ahead) 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.
Those grades are molded on the sidewalls
of passenger
car tires.
While the tires available as standard or optional
equipment on General Motors vehicles may vary with
respect to these grades, all such tires meet General
Motors performance standards and have been approved
for use on General Motors vehicles. All passenger type
(P Metric) tires must conform to Federal safety
requirements
in addition to these grades.
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.
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In most cases, you will not need to have your wheels
aligned again. 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.
If wheel nuts keep coming loose, the wheel, wheel bolts,
and wheel nuts should be replaced.
If the wheel leaks air
out, replace it (except some aluminum wheels, which
can sometimes be repaired). See your Buick 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 Buick
model.
A CAUTION:
Using the wrong replacement wheels, wheel
bolts, or wheel nuts on your vehicle can be
rngerous. It could affect the braking and
.. ~ndling 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.
- ..ways use the correct wheel, wheel bolts, ~ d
I wheel nuts
for replacement.
I
1: NOTICE:
The wrong wheel can atso cause Droblems with
bearing life, brake cooling,
speedometer/odometer calibration, headllgb,,
aim, bumper height, vehicle ground clearance
and tire or tire chain clearance to the body an(
chassis.
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Explanation of Scheduled Maintenance
Services
Below are explanations of the services listed in Schedule
I and Schedule
11.
The proper fluids and lubricants to use are listed in
Section
D. Make sure whoever services your vehicle
uses these. All parts should be replaced and all
necessary repairs done before you or anyone else drives
the vehicle.
NOTE: To determine your engine’s displacement and
code, see “Engine Identification” in the Index.
1. Engine Oil and Filter Change* -- Always use SG
Energy Conserving I1 oils of proper viscosity. The
“SG” designation may be shown alone or in
combination with others, such as “SG/CC”,
“SG/CD” or
“SF, SG, CC,” etc. To determine the
preferred viscosity for your vehicle’s engine (e.g.,
SAE
5W-30 or SAE 10W-30), see “Engine Oil” in
the Index. If your vehicle has an Engine
Oil Life
Monitor,
the monitor will show you when to change
the oil. See “Engine Oil Life Monitor” in the Index.
* An Emission Control Service.
2.
3.
4.
5.
6.
Chassis Lubrication -- Lubricate the transaxle shift
linkage, parking brake cable guides, underbody
contact points and linkage. If your vehicle is
equipped with grease fittings, lubricate the
suspension and steering linkage.
Throttle Body Mounting Bolt Torque” -- Check
the torque
of the mounting bolts and/or nuts.
Tire and Wheel Rotation and Inspection -- For
proper wear and maximum tire life, rotate your tires
following the instructions in this manual. See “Tires,
Inspection
& Rotation” in the Index. Check the tires
for uneven wear or damage. If you see irregular or
premature wear, check the wheel alignment. Check
for damaged wheels also.
Engine Accessory Drive Belt(s) Inspection --
Inspect the belt(s) for cracks, fraying, wear and
proper tension. Replace as needed.
Cooling System Service* -- Drain, flush and refill
the system with new or approved recycled coolant
conforming to GM Specification
1825M. Keep
coolant at the proper mixture
as specified. See
“Coolant” in the Index. This provides.proper freeze
protection, corrosion inhibitor level and engine
operating temperature.
The U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of vehicle
useful life. General Motors, however, urges that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded in “Section E:Maintenance Record”.
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Wet Road Driving ............................... 183
Wheel Alignment
................................ 275
Wheel Covers Removal
........................... 231
Wheel Nut Torque
............................... 236
Wheel Replacement
.............................. 276
Why Wear Safety Belts
? ........................... 20
Windows. Power
................................ -90
Cleaning
.................................... 281
Washer
...................................... 94
Washer Fluid
.................................. 262
Wipers
....................................... 93
Winter Driving
.................................. 197
Wire Wheel Cover
............................... 232
Working On Your Car ............................ 242
Worn Tires
..................................... 273
WreckerTowing
................................. 217
White Sidewall
Tires. Cleaning
..................... 283
Windshield
_.,.
Your Driving and the Road ......... , ............. 159
Your Own Signals
............................... 166
Your Vehicle and the Environment
.................. 295
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