Quality protection for gasoline and heavy duty diesel engines. Texaco Anti-Freeze Coolant Concentrate is a superior quality, ethylene glycol based product. Low silicate, all-purpose coolant designed for both cars and heavy duty diesel trucks (with use of supplemental coolant additives). Contains inhibitors required to prevent rust and corrosion of all cooling system metals. Texaco Anti-Freeze Coolant Concentrate mixed with clean tap water, provides freeze protection to -34 degrees F and raises cooling system boiling point to 265 degrees F when using a 15 lb. pressure cap when used as directed. Texaco Anti-Freeze Coolant Concentrate provides protection for a minimum of one year. Benefits: Quality protection for gasoline and heavy duty diesel engines, provides year round rust and corrosion protection, low silicate formulation, excellent heat transfer properties. Made in USA.