Part of the Rislone Hy-per premium performance chemical family, Rislone Hy-per Cool Radiator Cleaner & Super Flush, No. HFL400, is formulated to remove damaging coolant deposits that build up over time and cause engine overheating. It also neutralizes acids and helps prevent the formation of scale deposits for longer system life. Its Heavy Duty Xtreme Clean formula cleans the entire cooling system, removing solder bloom, oily residue, rust, and scale. It is fast, easy, and safe to use in all cooling systems. It removes deposits and coolant gel for a complete cleaning in about 30 minutes. Rislone recommends treating systems of up to 16 quarts with one 16 oz. (473 ml.) bottle. For best results, add a bottle of Rislone Hy-per Cool Super Coolant when refilling the system to deliver optimal heat transfer performance.
