1995 Chevrolet Lumina Owner's Manual - Page 210

What Kind of Oil to Use Oils of the proper qualityfor your vehicle can be identified by lookingfor the "Starburst" symbol. The "Starburst" symbol indicates that oil has been the certified by the American Petroleum Institute (API), and is preferred for use in your gasoline engine. If you change your own oil, be sure you use that oil has the "Starburst" symbol on thefront of the oil container. If you have your oil changed for you, be sure the oil put into your engine is American Petroleum Institute certifiedfor gasoline engines. You should also use the proper viscosity for your oil vehicle, as shown in the following chart: I I 3.1L L82 (Code M) Engine 3.4L LQ1 (Code X) Engine Just fill it enough to put level somewherein the the proper operating range. Push the dipstick all way the back in when you're through. 6-12