STP® Universal (All Season) Concentrate Antifreeze/Coolant is a concentrated ethylene glycol-based engine coolant formulated with a low silicate corrosion inhibitor package. Our high-performance coolant is engineered to protect cooling system metals, including aluminum, from pitting caused by cavitation and corrosion. STP® Universal Concentrate Antifreeze/Coolant offers exceptional cooling in summer and superior protection against freezing in winter, making it suitable for older model domestic and foreign cars, and light-duty trucks. It meets or exceeds the performance requirements of major manufacturers and provides up to 80,000 km (50,000 miles) or 2 years of service life when used as an initial fill or after a complete system flush and clean.