1998 Chevrolet Lumina Owner's Manual - Page 252
1998 Chevrolet Lumina Manual
Page 252 highlights
The engine oilfill cap is located towardthe front of the engine nearthe yellow-looped engine oil dipstick. What Kind of Engine Oil to Use Oils recommendedfor your vehiclecan be identifiedby looking for the "Starburst" symbol.This symbol indicates that the oil has been certified by the American Petroleum Institute (API).Do not use any oil which does not carry this Starburst symbol. I you change your own f oil, be sure you use that has oil the Starburst symbol on the front of the oil container. 3100 (Code M) Engine 3800 (Code K) Engine Be sure tofill it enough to putthe level somewhere in the proper operating range. Push the dipstick all way the back in when you're through. If you have your changed for you, be sure theoil put oil into your engine American Petroleum Institute is certified for gasoline engines. should also use You the proper viscosity oilfor your vehicle, as shown in the following chart: 6-14