Cooling System Antifreeze

NAPA Heavy Duty ELC NF Extended Life Nitrite-Free Coolant/Antifreeze has been developed to meet the changing requirements of Domestic, European and Asian OEM’s. Because nitrite from OAT HD formulations can cause aluminum corrosion in the presence of brazing residues, the latest Detroit Diesel and Mercedes-Benz (MB) engines and vehicles are currently factory-filled with nitrite-free (NF) extended life technology. The nitrite-free formulation is based on proven carboxylate organic acid technology (OAT), and is designed for use in all diesel, gasoline and natural gas engines from light, medium, to heavy duty on-highway applications. The nitrite-free inhibitor system provides complete CAB brazed aluminum, corrosion and erosion protection while maintaining optimum heat transfer conditions for total HD engine system performance.
Excellent heat transfer due to OAT technology compared to conventional silicate containing coolants.
Compatibility with other conventional and extended life antifreeze/coolants
Year-around protection against freeze-up and boilover
Complete corrosion protection for all engine and cooling system metals including aluminum, brass, copper, solder, steel and cast iron
Improved water pump seal life due to silicate-free environment, as well as protection against cavitation erosion, and corrosion wear
Extended service life of up to 600,000 miles/12,000 hours or 6 years in heavy duty applications under normal operating conditions, without the use of extenders or SCAs; up to 150,000 miles or 5 years of service in light and medium duty app