Zerex Heavy Duty Extended Life 50/50 Prediluted Ready-to-Use Antifreeze & Coolant - 1 Gallon (Case of 6) - Ideal for Cars, Trucks & Heavy-Duty Vehicles in Extreme Temperatures

Zerex Extended Life Antifreeze/Coolant Ready-to-Use patented formula has been charged with special inhibitors to protect diesel engines from liner pitting and hard water scale deposits for longer engine life. With the addition of an extender product, you can go 6 years, 14,000 hours, or 600,000 miles without changing your antifreeze. Zerex Extended Life Antifreeze/Coolant uses the highest quality virgin ethylene glycol for freeze and boil over protection, and a patented hybrid organic acid corrosion inhibitor package to protect cylinder liners from cavitation and liner pitting and your engine from rust and corrosion. No mixing required.