EVANS Cooling Systems EC53001 High Performance Waterless Engine Coolant, 128 fl. oz. Specifically designed for all modern, classic, and vintage gasoline-powered vehicles, light duty Diesels, LP and CNG vehicles Has a boiling point of 375 DegreeF and will not vaporize, eliminating boilover and after-boil Generates low vapor pressures, prevents coolant loss, and reduces strain on cooling system components Contains no water, effectively eliminating corrosion, liner and water pump cavitation erosion Minimizes the potential for corrosion and electrolysis issues, and reduces maintenance costs Eliminates pre-ignition and engine knock caused by overheating, improving combustion efficiency to deliver more power and improved fuel economy During installation ensure that all of old water-based coolant and water is removed before installing this product