SuperCool® Concentrate - GallonReduces or eliminates bubbles or vapor barrier that form on hot metal surfaces to reduce coolant temperatures by up to 20 Superior heat transfer properties compared to glycol based antifreeze Compatible with new or used antifreeze (including DEX COOL and long life versions) to improve the heat transfer of ethylene and propylene glycol systems Improves heat transfer and reduces cylinder head temperature Designed for use with all modern aluminum, cast