HD Extended Life NAPS FREE OAT

High-performance 50/50 pre-diluted antifreeze/coolant for heavy duty diesel applications requiring a nitrite, amine, phosphate or silicate free (NAPS) free organic acid technology (OAT) type antifreeze/coolant.


  • ASTM D6210
  • Universal top-off and service coolant compatible with other conventional/inorganic additive technology (IAT), hybrid organic acid technology (HOAT), and organic acid technology (OAT) antifreeze/coolant
  • NAPS free (does not contain Nitrite, Amine, Phosphate and Silicate) nor does it contain 2-EH (2-ethylhexanoic acid)
  • Prevents corrosion of aluminum, brass, cast iron, copper, solder and steel
  • Compatible with controlled atmosphere brazed (CAB) aluminum radiators
  • Provides excellent high-temperature aluminum protection
  • Compatible with elastomers, gaskets, and other non-metallics
  • Blended using de-ionized water
  • Contains a bittering agent

Recommended for heavy duty diesel applications for 6 years/600K miles without the need for SCA or an extender.

  • 55G Drums
  • Bulk