1994 Chevrolet Blazer Owner's Manual - Page 245

To Check EngineOil Pull out the dipstick and clean it with a paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip lower. 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 section explains what kind of oil to use. For crankcase capacity, see "Capacities and Specifications" in the Index. 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. 6-9