1995 Oldsmobile Aurora Owner's Manual - Page 242

What Kind of Oil to Use Oils of the proper quality for your vehicle can be identified by looking for the 'bStarburst" symbol. The "Starburst" symbol indicates that the oil has been certified by the American Petroleum Institute (API), and is preferred for use i n your gasoline engine. RECOMMENDED SAE VlSCOSlTV GRADE ENGINE OILS FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. HOT WEATHER LOOK FOR MIS SYMBOL I . SAE lunl-30 PREFERRED 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: DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED I 6-12