Prestone Heavy Duty 50/50 Prediluted NITRITE FREE Extended Life (ELC) Antifreeze/Coolant is intended for use and compatible with ANY nitrite free HD Organic Acid Technology (OAT) coolant in ANY diesel powered commercial vehicle engine or stationary engine with aluminum or other engine metals. Its patented technologically advanced nitrite free OAT formulation is based upon a concentrated blend of premium long-lasting inhibitors designed to guard against temperature extremes, rust, cavitation
