1993 Pontiac Sunbird Owner's Manual - Page 158
1993 Pontiac Sunbird Manual
Page 158 highlights
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWESTSAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. HOT NEATHEI ONE OF THESE LABELS LOOK FOR 2.0L L4: Adding Engine Oil #hat Kind of Oil to Use 3eginning midyear1993, oils of the xoper quality for your vehicle will be dentified withthis new "starburst" iymbol. The "starburst" symbol ndicates that the oil has been certified )y the American PetroleumInstitute :API),and is preferred for use your in ;asoline engine. I'ou should lookfor this on the front of he oil container, and use only oils that lisplay this new symbol. lou should alsouse the proper viscosity )il for your vehicle, shown in the as ollowing chart: SAE 5W-30 PREFERRED COLD WEATHER IF MEITHER SAE 5W-30 NOR SAE 1OW-30 GRADE OILS ARE AVAILABLE, SAC30 GRADE MAY BE USED AT TEMPERATURES ABOVE 40 DEGREES F (4 DEGREES c). l DO NOT USE SAE 1OW-40, SAE 2OW-50OR ANY OTHER GRADE OIL NOT RECOMMENDED. 3.1L V6: Adding EngineOil