1993 Oldsmobile 88 Owner's Manual - Page 231
1993 Oldsmobile 88 Manual
Page 231 highlights
Service di Appearance Care mmended SA€ Viscosity Grade EngineOils SAE low-30 As shown in the viscosity chart, SAE 1OW-30 is best for your vehicle. i€ However, you can useSAE 5W-30 it's going to be colder than 60°F (16°C) before your next change. oil When it's very cold, below 0°F (-18"C,you should useSAE 5W-30. ) These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity such as oils SAE 1OW-40or SAE 2OW-50. Energy Conserving I I Oils with these words the container on will helpyou save fuel. This doughnut-shaped logo (symbol) is used on most oil containers to help you oil. select the correct You should look for this on the oil container, and use only those oils that display the logo. Oil GM Goodwrench@ (in Canada, GM Engine Oil) meets all the requirements for your vehicle. What Kind of Oil to Use Look for Three Things: SG "SG" must beon the oil container, either by itself or combined with other quality designations, such as "SGICC," "SGICD," "SF, SG, CC," etc. These letters show American Petroleum Institute (API) levels of quality. IF NEITHER SAE 5W-30 NOR SAE 1OW-30 GRADE OILS ARE AVAILABLE, SAE 30 GRADE MAY BE USED AT TEMPERATURES ABOVE 4 0 DEGREES F (4 DEGREES C). DO NOT USE SAE 10W-40, SAE 2OW-50 0 OTHER ANY GR ECOMME I I 230