1996 Chevrolet Monte Carlo Owner's Manual - Page 219

: Kind of Oil to Oils recommended for your vehicle can be identified by 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. 1 3.1 L L82 (Code M) Engine 3.4L LQ 1 (Code X) Engine I f you change your own oil, i be sure you use oil that has the Starburst symbol onthe front of the oil container. Just fill it enough to put the level somewhere in the proper operating range. Push the dipstick all the way back in when you're through. If you have your oil changed for you, be sure the oil put into your engine is American Petroleum Institute certified for gasoline engines. You should also use the proper viscosity oil for your vehicle, as shown in the following chart: 6-11