PURUS® Heavy Duty Extended Life Antifreeze/Coolant is intended for use and compatible with ANY nitrited heavy duty Extended Life (NOAT) antifreeze/coolant in ANY diesel powered truck, farm, off-road, and marine engine with aluminum and other engine metals. Its technologically advanced formulation and TMC compliant color is based on a concentrated blend of premium long-lasting inhibitors designed to provide up to 750,000 mile service life protection* against temperature extremes, rust, corrosion, scale, and premature water pump failure.


 When used as directed:
• May be added to the NOAT antifreeze/coolant in ANY heavy duty truck, farm, off-road, and/or marine engine application
• Meets performance requirements of CAT EC-1
• Provides a silicate, phosphate and borate-free formulation for long lasting inhibition and corrosion protection
• Protects aluminum and other engine metals
• Meets or exceeds ASTM D3306, ASTM D4985 and ASTM D6210