1995 Chevrolet S10 Pickup Owner's Manual - Page 226

When to Add Oil If the oil is at or below the ADD line, then you'll need to add some oil.But you must use the right kind. This part explains what kind of oil to use. For crankcase capacity, see "Capacitiesand Specifications" inthe Index. I NOTICE: Don't add too much oil. your engine has much oil that the If so oil level gets above the cross-hatched area that shows the proper operating range, your engine could be damaged. The engineoil filler capis located on the driver's side engine valve cover. Just fill it enough to put the level somewhere in the proper operatingrange. Push the dipstick all the back in when you're through. way What Kind of Oil to Use Oils of the proper quality for your vehicle can be identified by looking for the "Starburst" symbol. The "Starburst" symbol indicates that the oil has been certified by the American Petroleum Institute (API), and is preferred for usein your gasoline engine. If you change yourown oil, be sure you use oil that has the "Starburst" symbol on the frontof the oilcontainer. If you have your oil changed for you, be sure the oil into your engine isAmerican Petroleum Institute put certified for gasoline engines. 6-9