1995 Oldsmobile Silhouette Owner's Manual - Page 275

3800 V6 Engine FOR BEST FUEL ECONOMY AND COLD STARIING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. .e HOT WEATHER O F "C 100+80+60- As shown in the chart, SAE 1OW-30 is best for your vehicle. However, you can use SAE 5W-30 if it's going to be colder than 60 O F ( 16O C) before your next oil change. When it's very cold, you should use SAE 5W-30. These numbers on an oil containershow its viscosity, or thickness. Do not use otherviscosity oils, such as SAE 20W-50. - t38 - +27 - +16 NOTICE: Use only engine oil with the American Petroleum Institute Certified For Gasoline Engines "Starburst" symbol. Failure to use the proper oil can result in engine damage not covered your by warranty. rl IF NEITHER SAE SW-30 NOR SAE 1OW-30 GRADE OILS ARE AVAILABLE, SAE 30 GRADE MAY BE USED AT TEMPERATURES ABOVE 40 DEGREES F (4 DEGREES C) +40- -+4 +20- --7 a - --la GM Goodwrench@ oil (in Canada, GM Engine Oil) meets all the requirements foryour vehicle. COLD WEATHER DO NOT USE SAE2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED 3800 V6: Oil Viscosity Chart 6-15