VP Racing Cool Down coolant additive is proven to reduce your engine temps (by up to 30°F) & cylinder head temps (by up to 75°F) while improving coolant flow. It works for gas and diesel engines & is safe for all radiator systems. Cool Down is ideal for your racing and street vehicles, RV, & towing applications.
Our coolant additive lubricates all vital components & is approved by most race-sanctioning bodies. Just one 16-Oz. bottle treats 12-20 quart cooling systems. If you run straight water in your system, we recommend adding 50% more Cool Down. When using as a diesel coolant additive, use twice the usual amount of product to protect wet sleeve cylinder liners. For powersports vehicles, you’ll want to use 2 oz. of Cool Down for every quart of coolant.
Cool Down is safe for all gas and diesel radiator systems. It reduces engine temperatures by up to 30°F and improves the flow of coolant. We formulate it for use with today’s OAT and HOAT-formula engine coolants.
