Castrol Radicool SF is a long-life coolant based on monoethyleneglycol with advanced organic acid inhibitor technology. It provides excellent corrosion protection, especially for engines with light metals. Suitable for a wide range of OEMs equipment, it works over a wide operating temperature range for effective engine cooling in all climates. Radicool SF allows extended drain intervals of 3 years plus, reducing costs and environmental impact. It prevents calcium deposits, ensuring optimum engine temperatures and efficient heat transfer.