Description
Full color 8″ x 10 3/4″ ad for their famous Oil Treatment. The headline asserts that “This homely can makes your car run beautifully” yet the drawing that the can is shown in is colorful and pleasant to the eye. The text mentions that the can doesn’t compare to the chrome on your car but, inside your engine, STP sparkles. It explains what it will do for a new car and what it achieve for a used car and, if you need proof, look at the cars that run the Indy 500, hardly any go anywhere without STP on their side.”
Source: May 1968 Playboy.
