STP® Universal Antifreeze/Coolant (All Seasons) is a premium ethylene glycol-based engine coolant with a range of low-silicate corrosion inhibitors. This product protects cooling system metals, including heat-repelling aluminum, from pitting caused by cavitation and corrosion. It provides exceptional cooling in summer and excellent freeze protection in winter. It is recommended for use in older models of North American and imported cars and light trucks and will provide up to 80,000 km (50,000 miles) or 2 years of service life when installed as an initial fill, or after a thorough flush and cleaning of a reasonably good cooling system. It is compatible with coolant additive supplements and coolant filters, and can therefore be used in heavy-duty diesel cooling systems when pre-charged with a coolant additive supplement.
