1993 Oldsmobile Achieva Owner's Manual - Page 225
1993 Oldsmobile Achieva Manual
Page 225 highlights
I RecommendedSAE Viscosity Grade EngineOils :$For best fuel economy and cold startin :;$elect the lowest SAE viscosity 9rad.e bII ' : for the expected~tegnDera!ure range.~ ~. ~ .~ . . HOT K-'THER SAE low-30 (3300 V6 Engine) As shown in the viscosity 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°F (16°C) before your next oil change. When it's very cold, below 0°F (-18"C), you should use SAE 5W-30. These numbers on anoil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 1OW-40 or SAE 20W-50. IF NEITHER SAE 5W-30 NOR SAE 1OW-30 GRADE OILS ARE AVAILABLE, SAE 30 GRADE MAY BE USED AT TEMPERATURES ABOVE 40 DEGREES F (4 DEGREES C). :ID0 NOT USE SAE 1OW-40, SAE 2OW-50 OR :*NY OTHER GRADE OIL NOT RECOMMENDED X61 0 Energy Conserving 11 Oils with these words on the container will help you save fuel. This doughnut-shaped logo (symbol)is used on most oil containers to help you select the correctoil. You should look for this on the oil container, and use only those oils that display the logo. GM Goodwrench@ Oil (in Canada,GM Engine Oil) meets all the requirements for your vehicle. 223