1996 GMC Safari Owner's Manual - Page 242

Checking 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, and check the level. When to Add ~ I 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 "Capacities and Specifications" in the Index. r ~~ I NOTICE: Don't add too much oil. your engine has If so much oil that the oil level gets above the cross-hatched area that shows the proper could be damaged. operating range, your engine Just fill it enough to put the level somewhere in the proper operating range. Push the dipstick all the way back i n when you're through. 6-12