General Motors and Standard Oil, through Ethyl Gasoline Corp. shared critical leaded gasoline / anti engine-knock technology with Germany, in order to enable t

General Motors and Standard Oil, through Ethyl Gasoline Corp. shared critical leaded gasoline / anti engine-knock technology with Germany, in order to enable their blitzkrieg. "In 1935 Ethyl Gasoline Corporation transferred its know-how to Germany for use in the Nazi rearmament program. This transfer was undertaken over the protests of the U.S. Government."