Castrol's coolant and antifreeze range works to help your engine maintain outstanding performance and protection, even under extreme conditions.
Commercial vehicle engines run hotter than ever before. With heavier loads and longer journeys, engine cooling systems must work hard to combat high internal temperatures. It's vital to ensure you use the right coolant, allowing your engine to maintain optimum performance even in the toughest conditions.
Castrol offers a wide range of antifreeze and coolants available in both concentrated and pre-diluted formulations, with selected additives to help prevent corrosion in the engine and cooling system.
The Castrol RADICOOL range features extended-life products that maintain performance even under extreme conditions, preventing both engine overheating and water freezing.
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 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.