Peak, Gallon, Full Strength Concentrate Green Antifreeze & Coolant Ethylene Glycol Based Antifreeze For Use In Older Automotive & Light Duty Diesel Applications, Provides Maximum Protection From Freezing To -84 Degrees Fahrenheit & Boil Over To +276 Degrees Fahrenheit, Protects All Metals, Including Aluminum, Against Damaging Rust & Corrosion When Used As Recommended, Color Is Green.