WE USE Flushing Oil and ZEROLENE LOOK FOR THE SIGN Modern Crankcase Cleaning Service helps to keep your engine in prime condition. Safe—Thorough—Correct. STANDARD OIL COMPANY (California) MODERN CRANKCASE CLEANING SERVICE (Kuokoa, 9/28/1922, p. 3)Filed under: Advertisement Tagged: Standard Oil Company, Zerolene![]()
