Engine Ice Hi-Performance Coolant is biodegradable, phosphate-free, and non-toxic, typically reduces operating race temperatures and effectively keeping boil over temperatures to 256degrees Fahrenheit or less and freeze-up protection to -26 degrees Fahrenheit. With an average reduction in operating temperatures of 10 degrees Fahrenheit - 20degrees Fahrenheit Engine Ice is perfect for racing or street, motorcycle or auto, ATV, or snow machine. Engine Ice Hi-Performance Coolant is legal in CCS and ASRA road racing and permitted at many tracks around the world. Engineered to keep your operating temperatures at optimum performance to not lose power through excess heat. Engine Ice is safe for aluminum and almost all metals. Uses propylene glycol, which has been proven to eliminate water pump gasket and seal failures. It has also shown in high load, high-stress conditions to reduce operating temperatures more than standard coolants.