Coolants
Ethylene glycol based engine coolant. Premium recommendation for most HD diesel engines.
Pre-mixed, ready to use version of Castrol Premium Cool Plus. Premium recommendation for most HD diesel engines.
Ready to use ethylene glycol based, heavy duty long life coolant. Low silicate, phosphate and amine free. Recommended for use in cooling systems of heavy duty, diesel engines.
Ready to use propylene glycoll based, heavy duty long life coolant. Recommended for use in cooling systems of automotive, light duty and heavy duty diesel applications.
A fully formulated, heavy duty, ethylene glycol coolant concentrate designed to meet the requirements of major European diesel engines. It is nitrite, phosphate and amine free and provides excellent corrosion protection for modern engine alloys in radiators, water pumps, cylinder blocks and heads.
A fully formulated, heavy duty, ethylene glycol coolant concentrate designed to meet the requirements of major European diesel engines. It is nitrite, phosphate and amine free and provides excellent corrosion protection for modern engine alloys in radiators, water pumps, cylinder blocks and heads.
Castrol Radicool P-OAT is a nitrite, amine, borate and silicate free antifreeze coolant for vehicles requiring Phosphated Organic Additive Technology (P-OAT). Aqueous solutions of Castrol Radicool P-OAT act as both antifreeze and coolant and offers excellent protection for the metals used in engine radiator systems, cylinder block heads, water pumps and heat exchangers.
A long-life ready to use coolant based on monoethylene glycol with advanced organic acid inhibitor technology. In contrast to traditional antifreeze coolants, Castrol Radicool SF Premix does not contain amines, nitrites, phosphates, silicates or other inorganic inhibitors.