Turbo Power 50/50 Pre-Diluted Antifreeze/Coolant Universal All-Season is a superior quality ethylene glycol-based engine coolant with a low silicate corrosion inhibitor package designed for older model of domestic and foreign cars, as well as light duty diesel trucks. It protects vehicles coolant system metals, including heat-rejecting aluminum, against pitting caused by cavitation and corrosion. Turbo Power Universal provides exceptionnal protection against freezing in the winter, down to -37°C, and against boil over to 129°C in the summer, when used in accordance with OEM (Original Equipment Manufacturer) and product manufacturer’s guidelines regarding product dilution. This antifreeze/coolant is compatible with Supplemental Coolant Additives (SCA) and coolant filters and can be used in heavy duty diesel coolant systems when pre-charged with SCA.