Prestone CommAnd HD Nitrite Free ELC with Cor-Guard is intended for use And compatible with ANY nitrite free HD Organic Acid Technology (OAT) coolant in ANY diesel powered commercial vehicle engine or other engine cooling system metals. Its patented And advanced OAT nitrite free formulation is based upon a concentrated blend of premium long-lasting inhibitors designed to provide up to 1,000,000 miles / 20,000 hours of long protection against temperature extremes, rust, cavitation corrosion, scale And premature water pump failure.
