1995 GMC Safari Owner's Manual - Page 215

To Check Engine Oil 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 down. When to Add Oil If the oil is at orbelow the ADD line, then you'll needto add some oil. But you must use the right kind. This part explains what kind ofoil 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. 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. 6-9