EZ Pour - No splash design. Nothing protects better. Against rust and corrosion. Against temperature extremes -84 to 276 degrees F. Prestone Antifreeze/Coolant is a technologically advanced antifreeze/coolant with a new EZ Pour No Splash Bottle design to help make adding antifreeze/coolant simple. What separates Prestone Antifreeze/Coolant from some other antifreezes is how well it protects against rust and corrosion that can accumulate in your cooling system and cause problems like radiator leaks, clogged thermostats and damaged water pumps. Prestone Antifreeze/Coolant contains a patented anticorrosion system which bonds to the metals in your cooling system to provide optimum corrosion protection. Used as directed, Prestone Antifreeze/Coolant: prevents freeze-ups; prevents overheating and boilovers; prevents rust and corrosion; protects aluminum and all other engine metals. Protection: Minimum - 50% Prestone & 50% water; Freeze-Up Protection: -34 degrees F; Boilover Protection (Using a 15 lb pressure cap.): 265 degrees F; Corrosion Protection: Exceeds all ASTM and SAE standards for corrosion protection. Protection: Maximum - 70% Prestone & 30% water; Freeze-Up Protection: -84 degrees F; Boilover Protection (Using a 15 lb pressure cap.): 276 degrees F; Corrosion Protection: Exceeds all ASTM and SAE standards for corrosion protection.