VP Racing Cool Down Coolant Additive Cool Down by VP Racing is designed to enhance coolant performance while being compatible with all radiator systems. It is suitable for various applications including racing, street driving, and off-road use. Cool Down can effectively lower cylinder head temperatures by up to 75 F. Additionally, it boosts coolant circulation for improved heat dissipation, lubricates crucial cooling parts, and holds approval from a majority of race governing bodies. With a long-lasting formula, a single bottle of Cool Down can provide benefits for up to a year or 30,000 miles, whichever occurs first. Features: Reduces cylinder head temps up to 75F and overall coolant temps by up to 30F Improves heat transfer Lubricates cooling system hardware Can be used in straight water cooling systems (add an extra 50) For diesel applications, double the ratio One full bottle treats 12 quarts of coolant (up to 20 quarts) Protects sensitive aluminum components