Peak Final Charge NOAT is an Extended Life Coolant with advanced nitrited organic acid technology. This ethylene glycol based coolant uses organic acid inhibitors to provide guaranteed protection for all cooling system metals. With proper maintenance Final Charge NOAT delivers guaranteed cooling system protection for 750, 000 miles of on road use. This product works in all heavy duty diesel, gasoline and natural gas engine cooling systems. It has excellent heat transfer for high temperature applications such as engines with EGR and SCR systems.