1997 Oldsmobile Silhouette Owner's Manual - Page 311
1997 Oldsmobile Silhouette Manual
Page 311 highlights
RECOMMENDED SAE VISCOSITY 6RADE ENGINE OILS FOR BESTFUELECONOMY AND COLDSTARTING,SELECTTHELOWEST SAL VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. As shown in the chart,SAE 5W-30 is best for your vehicle. However,you can use S A E 1OW-30 if it's going on to be0°F (- 18" C) or above. These numbers an oil Do container show its viscosity, or thickness. not use other viscosity oils, such as SAE 20W-50. HOT WEATHER "F 1100- "C WOK FOR THIS SYMBOL NOTICE: Use only engine oil with the American Petroleum Institute Certified For Gasoline Engines to "Starburst" symbol. Failure use the recommended oil can result in engine damage not covered by your warranty. GM Goodwrench@ oil meets all the requirements for your vehicle. + 38 + 27 +EO+60 - + 16 +4 +40- + 20 0- -7 - 18 L COLD WEATHER DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED If you are inan area where the temperature falls below -20°F (-29"C), consider using either an A E 5W-30 S synthetic oil or S A E OW-30 oil. Both will provide an easier cold starting and better protection your engine for at extremely low temperatures. 6-13