HOAT stands for Hybrid OAT Coolant. These antifreeze use organic acids usually silicates to provide protection fB40minium surfaces. A HOAT coolant requires to be changed in every five years or 150,000 miles. In recent years, antifreeze manufacturers have been creating universal antifreeze that can be used with all types of vehicles.
Key Attributes:
Added Inhibitors based on a combination of inorganic salts (IAT) and neutralized organic acids (OAT)
Designed for use in both automotive, light duty and heavy-duty diesel applications
Excellent wet sleeve liner cavitation protection
Good high temperature aluminum performance
Generally compatible with SCAS and Coolant Extenders
Extended life in both light and heavy duty applications; mixed fleet application