1994 Oldsmobile Achieva Owner's Manual - Page 182
1994 Oldsmobile Achieva Manual
Page 182 highlights
Service & Appearance Care FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. LOOK FOR HOT ONE OF THESE LABELS WEATHER 2.3L Quad 4: Adding Engine Oil What Kind of Oil to Use Beginning midyear 1993, oils of the proper quality for your vehicle will be identified with this new "starburst" symbol. The "starburst" symbol indicates that the oil has been certified 3y the American Petroleum Institute (API)! andis preferred for use in your ;asoline engine. You should look for this on the front of the oil container, and use only oils that display this new symbol. You should also use the proper viscosit5 1 i l for your vehicle, as shown in the following chart: 3100 V6: Adding Engine Oil SAE 5W-30 PREFERRED / I F NEITHER SAE 5W-30 NOR SAE 1OW-30 COLD DO NOT USE SAE 1OW-40, SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED. 4 s shown in the chart, SAE 5W-30 is 3est for your vehicle. However, you can use SAE 1OW-30 if it's going to be 0°F 180