1995 GMC Safari Owner's Manual - Page 214

Then just pull the hood down andclose it firmly. Engine Oil It's a good idea to check your engine oil every time you get fuel. In order to get an accuratereading, the oil must be warm and the vehicle must on be level ground. 1 Turn off theengine and give the oil a few minutes to drain back into the oil pan.If you don't, the oil dipstick might not show the actual level. 6-8