KLEEN-FLO TUMBLER INDUSTRIES is a proud leading Canadian company in the production and distribution of a variety of automotive chemicals since 1939.Our history spans 3 countries, 3 principal organizations and over 80 years. The Combustion Utilities Corporation of Montreal, J.A. Tumbler Laboratories of Baltimore, Maryland and Burmah Castol of the United Kingdom have all contributed to the existence and progressive growth that is Kleen-flo.