Castrol Radicool Anti-Freeze/Anti-Boil SF Premix Coolant is a high-performance engine coolant that offers excellent protection against corrosion, cooling system blockage, overheating, and freezing. The coolant is compatible with all standard rubber hoses, gaskets, and seals used within the cooling system.With extended drain intervals of 3 years , this Castrol coolant will help you to reducing operating costs and environmental impact while protecting against corrosion. Castrol Radicool Anti-Freeze/Anti-Boil SF Premix Coolant also provides effective water pump lubrication, reducing wear and noise for a quieter drive, offering excellent protection against cavitation-corrosion.

• Special inhibitor package enables longer drain intervals with excellent protection against corrosion, cooling system blockage, overheating and freezin
• Suitable for use in engines employing cast iron, aluminium, copper or combinations used in modern engine designs
• Compatible with all standard rubber hoses, gaskets and seals used within the cooling system
• Longer operational life with extended drain intervals of 3 years+, reducing costs and environmental impact
• Effective water pump lubrication, reducing wear and noise for a quieter drive
• Excellent protection against cavitation-corrosion
• Contains a bittering agent to deter from accidental ingestion