HD Expert 50/50 Pre-Diluted Mixed-Fleet Global Heavy Duty Antifreeze/Coolant Extra is designed for use in all makes and models of passenger vehicles, light and heavy duty diesel vehicles including on-road, off-road, construction & farm applications. This antifreeze/coolant will provide best protection against rust and corrosion for all coolant system metals, including aluminum, while providing extended protection against wet sleeve liner cavitation pitting and extreme temperature variations ranging from -37°C to 132°C, preventing summer overheating and winter freezing, when used in accordance with OEM (Original Equipment Manufacturer) and product manufacturer’s guidelines regarding product dilution. HD Expert Extra is compatible with all aluminum radiators found in today’s engine cooling systems.