Engine Ice Hi-Performance Coolant is biodegradable, phosphate free, non-toxic, and typically reduces operating race temperatures, effectively keeping boil-over temperatures to 256F or less and freeze-up protection to -26 F. Right out of the bottle, it is ready to provide dependable horsepower and is proven to reduce operating temperatures. The key to horsepower is not losing it! Engine Ice Hi-Performance Coolant is engineered to maintain optimum operating temperature and reduce power loss from excess heat. Provides you with reliable power and reduced operating temperatures regardless of the terrain you tackle.