1995 Pontiac Grand Prix Owner's Manual - Page 225

What Kind of Oil to Use Oils of the proper quality your vehiclecan be for The identified by looking for the "Starburst" symbol. "Starburst" symbol indicates that the oil has been 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 oil that has the "Starburst" symbol on the front the oil of 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: 3.1L L82 (Code M) Engine 3.4L LQl (Code X) Engine in Just fill itenough to put the level somewherethe proper operating range. Push the dipstick all the way back in when you're through. 6-12 ~~