1995 Oldsmobile 88 Owner's Manual - Page 240

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS FOR BEST FUEL ECONOMY AND COLDSTARTING,SELECTTHELOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. HOP WEATHER I tlOO WEATHER ~I 7 LOOK FOR T I H S SYMBOL As shown in the chart, SAE 1OW-30 is best for your vehicle. However, youcan use SAE 5W-30 if it's going to be colder than * F ( 16"C) before your next oil 60 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. "F "C - - 38 - 27 ITICE Use only engine oil with the American Petroleum Institute Certified For Gasoline Engines "Starburst" symbol. Failure to use the proper oil by can result in engine damage not covered your warranty. GM Goodwrench@ oil (in Canada, Engine Oil) GM meets all the requirementsfor your vehicle. - 16 .b + 20 i-. 7 ' 18 SAE 1OW-30 PREFERRED above 0°F (-1WC) SAE W 3 -0 Engine Oil Additives Don't add anything to your oil. Your Oldsmobile retailer is ready to advise if you think somethingshould be added. DO NOT USE SAE 2OW-56 OR ANY OTHER GRADE OIL NOT RECOMMENDED 6-16