1995 Pontiac Firebird Owner's Manual - Page 248

When to Add Oil If the oil is at or below the line, then you'll need to ADD add some oil. But you must usethe right kind. This part explains what kind.of oilto use. For crankcase capacity, see ''Capacities and Specifications" in the Index. What Kind of Oil to Use Oils of the proper quality your vehiclecan be for identified by looking for the "Starburst" symbol. The "Starburst" symbol indicates thatthe oil has been certified by the American Petroleum Institute (API), and is preferred for use in your gasoline engine. NOTICE: Don't add too much oil. your engine has If so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, your engine could be damaged. Just fillit enough to put level somewhere in the the proper operating range. Push the dipstick allway the back in when you're through. If you change your own oil, be sure you use that has oil the "Starburst" symbol on the front the oil container. of If you have your changed for you, be sure the oil put oil ihto your engine is American Petroleum Institute certified for gasoline engines. You should also use the proper viscosity oil for your vehicle, as shown the following chart: in 6-15