Castrol Radicool SF-O Premix is a silicate free ready-mixed antifreeze, formulated using advanced organic acid technology (OAT), and works over a wide operating temperature range for effective engine cooling in all climates. Castrol Radicool SF-O Premix requires no customer dilution therefore ensures the correct concentration is always used, providing year round protection against corrosion, and offers freezing protection down to -36°C.
Castrol Radicool SF-O Premix is a long-life coolant based on monoethylene glycol, it is suitable for use in a wide range of vehicles, including cars, trucks and buses, for both petrol and diesel engines. In contrast to traditional antifreeze coolants, Castrol Radicool SF-O Premix does not contain Amines, Nitrites, Phosphates, Silicates or other inorganic inhibitors. For maximum performance Castrol Radicool SF-O Premix should not be mixed with other coolants. It is therefore recommended that cooling systems should be drained and flushed before re-filling with diluted Castrol Radicool SF-OPremix.
The special inhibitor package used in Castrol Radicool SF-O Premix enables longer drain intervals with optimal protection against corrosion, cooling system blockage, overheating and freezing. Other benefits are longer operational life by allowing extended drain intervals of 3 years plus Longer life means reduced costs and less possibility of harm to the environment Outstanding corrosion protection and cooling performance in engines employing cast iron and / or aluminium and also in cooling systems with aluminium and / or copper alloys The additive technology in the product prevents build-up of calcium deposits from top up with hard water Its formulation is based on monoethylene glycol combined with special OAT inhibitor additive technology Protection against cavitation corrosion and rust effective lubrication of water pump Suitable for use in mixed fleets