Page 218 of 340

I
When to Add Oil What Kind of Oil to ‘Use
1
If the oil is at or below the ADD line, then you’ll
need to add some oil. But you must use the right kind.
This
part explains what kind of oil to use. For crankcase
I capacity, see “Capacities and Specifications” in
+he Index. Oils recommended
for your vehicle can be identified by
looking for the “Starburst” symbol.
This symbol
indicates that the oil has been certified by the American
Petroleum Institute (API).
Do not use any oil which
does not carry this Starburst symbol.
NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the
cross-hatched.area that shows the proper
’,
operating range, your engine could be damaged.
Just fill it enough to put the level somewhere in the
proper operating range. Push the dipstick all the way
back in when you’re through.
If you change your
own
oil, be sure
you use oil that has
the Starburst symbol
on the front
of the
oil container.
If you have your oil changed for you, be
sure the oil put
into your engine is American Petroleum Institute
certified for gasoline engines.
You should also use the proper viscosity oil for your
vehicle, as shown in the following chart:
6- 12
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Page 219 of 340

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, THE LOWEST
SAL VISCOSITY GRADE OIL
FOR THE EXPECTED ILL -AlURE RANGE.
HOT
WEATHER
WOK
FOR THIS
SYMBOL
17
+ 100-
+EO-
1
I
t 60“
t 40.
+ 20 ’
O! I
+ 16
c4
COLD
WEATHER
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
As shown in the chart, SAE 5W-30 is best for your
vehicle. However,
you can use SAE low-30 if it’s going
to be 0°F (- 18°C) or above. These numbers on an oil
container show its viscosity, or thickness.
Do not use
other viscosity oils, such as SAE 20W-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
“Starburst” symbol. Failure
to use the
recommended oil can result in engine damage not covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
Engine Oil Additives
Don’t add anything to your oil. Your Buick dealer is
ready to advise if you think something should be added.
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Page 311 of 340

Part D: Recommended Fluids and
Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from your
GM dealer.
USAGE
Engine Oil
Engine Coolant
FLUIDLUBRICANT
Engine oil with the American
Petroleum Institute Certified For
Gasoline Engines “Starburst”
symbol of the proper viscosity. To
determine the preferred viscosity
for your vehicle’s engine,
see
“Engine Oil” in the Index.
~~
50/50 mixture of clean water
(preferably distilled) and GM
Goodwrench@ DEX-COOL
TM or
Havoline@ DEX-COOL TM
(orange-colored, silicate-free)
antifreeze conforming to GM
Specification 6277M.
See “Engine
Coolant” in the Index.
USAGE
Coolant
Supplement
Sealer
Hydraulic Brake System
Parking Brake
Cable Guides
Power Steering
System
Automatic
Transaxle Key Lock
Cylinders
FLUIDLUBRICANT
GM Part No. 3634621 or
equivalent with a complete flush
and refill.
Delco Supreme 11
@ Brake Fluid
(GM Part
No. 1052535 or
equivalent DOT-3 brake fluid).
Chassis lubricant (GM Part
No. 1052497 or equivalent) or
lubricant meeting requirements
of
NLGI Grade 2, Category LB or
GC-LB.
GM Power Steering Fluid
1050017
- 1 qt., or equivalent).
DEXRON@-111 Automatic
Transmission Fluid.
Multi-Pu ose Lubricant,
Superlube
% (GM Part
No. 12346241 or equivalent).
(GM
Part
NO. 1052884 - 1 Pt.,
7-41
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