Castrol Radicool SF Premix is a long-life, ready-to-use antifreeze coolant made with advanced organic acid technology. It contains no amines, nitrites, phosphates or silicates, so it’s kinder to modern engines and the environment.
Key benefits:
- Excellent corrosion protection, especially for engines with light metals like aluminium
- Protects against freezing down to -37°C and overheating in all climates
- Longer drain intervals of 3 years or more – less top-ups and lower cost
- Prevents scale build-up from hard water and keeps radiators flowing freely
- Reduces cavitation, protects water pumps and improves heat transfer
- Compatible with all standard rubber hoses, gaskets and seals
- Contains a bittering agent for safety
Suitable for a wide range of vehicles and OEMs using cast iron, aluminium, copper or mixed metals. Just pour it straight into the cooling system – no mixing needed.
A reliable Castrol coolant that keeps engines running cool and protected for longer.