Castle® Cool Flo™ prevents scale, scum, and corrosion build-up that can clog the cooling system and eat away at the solder and other system components. It has been given a government specification number, signifying that Cool Flo™ has been tested effectively in all types of vehicles. The special surfactant in Cool Flo™ prevents cavitation by eliminating air bubbles in cooling systems of diesel engines. It is compatible with all coolant types, including Dex-Cool™ .
1. 12 ounces treats up to 22 quarts. With the engine running, pour the required amount into the radiator.
Keep from freezing.
Download PDF: C1212-Cool-Flo