Prestone COMMAND Universal Heavy Duty Purple Extended Service Interval IAT Antifreeze + Coolant Concentrate 55 gal (US)

Prestone Command® Heavy Duty Extended Service Interval Concentrate has advanced corrosion protection technology. The pre-charged extended service interval (ESI) technology product is compatible with ANY conventional heavy duty coolant and ALL filter technologies. Prestone Command Antifreeze/Coolant can be used with ANY antifreeze/coolant in ANY heavy duty engine used in normal to severe duty cycles and extreme temperature conditions. These products will provide protection against freezing, overheating, cavitation erosion, corrosion, and scale & foaming without the need of the initial fill and maintain extended service protection when added to any HD ESI antifreeze/coolant.