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HEAVY DUTY NITRITE FREE EXTENDED LIFE

Prestone Command® Heavy Duty Nitrite Free Extended Life and 50/50 Antifreeze/Coolant are Organic Acid Technology (OAT) for use and compatible with ANY OAT extended-life heavy duty antifreeze/coolant in all Class 1-8 vehicles: Heavy Duty and Light Duty.
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The Most technologically-advanced heavy duty antifreeze available

Prestone Command® Heavy Duty Nitrite Free ELC with Cor-Guard® Concentrate and 50/50 Antifreeze/Coolant utilizes Cor-Guard® technology formula designed to protect cooling systems from corrosion and damage. It's compatible with ANY nitrite free HD Organic Acid Technology (OAT) coolant in ANY diesel-powered commercial vehicle engine or stationary engine with aluminum or other engine metals.

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PRESTONE HD COMMAND 2-IN-1 FLUSH & DEGREASER

To properly cool your engine and remove corrosion, it's recommended to periodically refresh your cooling system for better performance. But did you also know that when changing over from an Inorganic Additive (IAT) Coolant to an Organic Acid (OAT) coolant, you also need to flush your engine? Prestone HD Command Flush is a specially formulated product that performs both important preventative maintenance functions.
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