Advanced design helps control operating temperature in hot-running, high-revving powersports applications. Extended-life formula provides all-season protection for up to five years. Mixed with high-purity water to help prevent scale and deposits and keep your engine running clean. Protects copper, brass/bronze alloys, aluminum, gaskets and hoses. Helps prevent corrosion and inhibit cavitation. Compatible with most coolants. Phosphate-, borate-, nitrite- and 2EH-free.