WD-40: THE TRUE KING OF CALIFORNIA’S OIL INDUSTRY
D-40 is the handiest of lubricating goos. Since its formulation in 1953, the multipurpose oil has been used by customers around the globe to keep doggy doors swinging, break in new baseball mitts, shine stainless steel, and unstick gum. During the Vietnam War, soldiers applied it to their M-16s to prevent rust damage; on one occasion, according to company lore, police officers slathered the
