1997 Chevrolet S10 Pickup Owner's Manual - Page 249

When to Add-Oil If the oil is at or below the ADD line, then.you'll need to add at least one quart of oil. But-you m u t use the. right kind. This part explaimwhat k i r d o f ' dto use. Fur crankcase capacity, see "Capacities and Specifications" in the Index. What Kind of Oil to Use Oils recommended for your vehicle can be identified by looking.for the "S.tarburst" symbol. This symbol indicates that the oil has been certified by the ArneriGm Petroleum Institute-(API). Do no1 use any oil which doesmot carry this Starburst symbol. NOTICE: 1 Don't add too much oil. If your engine has.so. much dl that the oil-levelgets above the cr8s.s-hatchedarea that shows the-proper operatiqg-rapgq, your engine cduld be damaged. Be sure to fill it enough to~put level somewhere in the the proper operating range. Push the dipstick allthe way back in when you're though. 1 '4 If you change your own oil, be sure you use oil that has the Starbursl s-yrnbol the front of the oil container: If you have your oil changed for yo.u, be s.ure the oil put into your .engine is .on C American Petr.oleum Institute certified for .gasoline engines. You should also .use the proper viscosity oil for your vehicle., as shown in the fgliDwing chart: