1 Gallon, FINAL CHARGE PRO-SERIES 50/50 Prediluted Antifreeze/Coolant is an advanced technology formula engineered to deliver the highest level of performance for today's heavy duty engines. Its stabilized Phosphate enhanced Organic Acid Technology (POAT) corrosion inhibitor system provides fast-acting, long-lasting protection to all cooling system metals including Controlled Atmosphere Brazed (CAB) and cast aluminum components. Scale-fighting inhibitors help prevent deposit formation to maximize heat transfer. FINAL CHARGE PRO-SERIES Antifreeze/Coolant is free of nitrite and 2-ethylhexanoic acid and is compatible with all system gaskets and hose materials. With proper maintenance, FINAL CHARGE PRO-SERIES Antifreeze/Coolant delivers guaranteed cooling system protection for 1.5 million miles, 10 years, or 36,000 hours, whichever comes first, without the use of Supplemental Coolant Additives (SCAs).