Oldsmobile 1997 Aurora Owner's Manual page 265

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RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
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FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE 011 FOR THE EXPECTED TEMPERATURE RANGE.
~ ~~~~~
~-
~~ ~ ~~~
HOT
WEATHER
, - ,
'
"F
"C
+ l o o -
-
t38
+eo-
- t27
+ 6 0 - - t 1 6
t401 ? t 4
+ 2 0 - - 7
0
- - l e
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COLD
WEATHER
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-1
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SAE 5W-30
LOOK
SAE 1OW-30
PREFERRED
above b"F
(-18°C)
DO NOT USE SAE 2OW-50 OR ANY
OTHER GRADE OIL NOT RECOMMENOED
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.
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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.
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