Command heavy duty antifreeze/coolants

Prestone's Command Heavy-Duty Antifreeze/Coolant products work as an universal antifreeze for any heavy duty vehicle. Available in two different formulations. Extended Life provides 600,000-mile/12,000-hour CAT EC-1 protection for any diesel-powered heavy-duty engine. A prediluted 50/50 formulation is available for convenient top-off applications. Extended Service is SCA pre-charged and provides advanced protection from freezing, overheating, cavitation erosion, corrosion, scale and foaming in any heavy-duty engine with need-release filter technology that is used in normal to severe duty cycles and extreme temperature conditions. A prediluted 50/50 antifreeze/coolant formulation and demineralized water dilution is available for convenient top-off applications.