1998 Oldsmobile Aurora oil viscosity

NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the upper mark that shows the proper operating range,
your engine could be damaged.
Be sure to 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.
What Kind of Engine Oil to Use
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.
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

I RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS I
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
I SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. I
HOT
WEATHER
/OF OC' -
+loo- t38 -
+EO- t27 -
+60- - +16 -
+40--+4
+20---7
0---18 I
\WI
COLD
WEATHER
-1 -I
111. SAE 1d-30 PREFERRED above IPF (-l WC) SAE 5W-30
DO NOT USE SAE 2OW-50 OR ANY
OTHER GRADE OIL NOT RECOMMENDED
As shown in the chart, SAE low-30 is best for your
vehicle. However, you can use
SAE 5W-30 if it's going
to be colder than
60°F ( 16 " C) before your next oil
change. When it's very cold, you should use
SAE
5W-30. 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.
If you are in an area where the temperature falls below
-20°F (-29"C), consider using either an SAE 5W-30
synthetic
oil or an SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely
low temperatures.
6- 13

Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your retailer.
USAGE
Engine Oil
Engine Coolant
Hydraulic Brake
System
FLUIDLUBRICANT
Engine Oil with the American
Petroleum Institute Certified For
Gasoline Engines
“S tarburst”
symbol
of the proper viscosity.
To determine the preferred
viscosity for your vehicle’s engine,
see “Engine Oil” in the Index.
50150 mixture
of clean water
(preferably distilled) and
use only
GM Goodwrench@ DEX-COOL@ or Havoline@ DEX-COOL@
Coolant. See “Engine Coolant”
in
the Index.
Delco Supreme 11
@ Brake Fluid
(GM Part No. 12377967 or
equivalent DOT-3 Brake Fluid).
I USAGE
Parking Brake
Cable Guides
Power Steering System
Automatic
Transaxle Cylinders
Floor Shift
Linkage
FLUIDLUBRICANT
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI # 2, Category LB or
GC-LB.
GM Power Steering Fluid
(GM Part
No. 1052884 - 1 pint,
1050017
- 1 quart, or equivalent).
DEXRON@-I11 Automatic
Transmission Fluid.
Multi-Pur ose Lubricant, Superlube (GM Part
No. 1234624 1 or equivalent).
Lubriplate@ Lubricant Aerosol
(GM Part No. 12346293 or
equivalent)
or lubricant meeting
requirements
of NLGI # 2
Category LB or GC-LB.
El
7-20