1996 Buick Century Owner's Manual

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILSFOR BEST FUEL ECONOMY AND COLD STARTING, THE LOWESTSAL VISCOSITY GRADE OIL FOR THE EXPECTED ILL -AlURE RANGE.HOTWEATHER1 71+ 100-+EO-t 60“t 40.+ 16c4WOKFOR THISSYMBOLAs shown in the chart, SAE 5W-30 is best for yourvehicle. However, you can use SAE low-30 if it’s goingto be 0°F (- 18°C) or above. These numbers on an oilcontainer show its viscosity, or thickness. Do not useother viscosity oils, such as SAE 20W-50.NOTICE:Use only engine oil with the American PetroleumInstitute Certified For Gasoline Engines“Starburst” symbol. Failure to use therecommended oil can result in engine damagenot covered by your warranty.I+ 20 ’O! ICOLDWEATHERDONOT USE SAE 2OW-50 OR ANY OTHERGRADE OIL NOT RECOMMENDEDGM Goodwrench@ oil meets all the requirements foryour vehicle.Engine Oil AdditivesDon’t add anything to your oil. Your Buick dealer isready to advise if you think something should be added.