And I know why! A friend of Joe Cherney, named "Dodge Reedy" (sp?) worked at one of them and would check the oil of everyone over 30 who drove in. He'd wipe the dip stick, insert it back about an inch shy and tell them they were a quart low. Then he'd get and empty can with a nozzle, pour the "emperor's new oil" into the crankcase and pocket the money for beer and weed.
In retrospect, I must have known someone in my youth who was not a felon but, for the life of me, their name escapes me now.