Castrol Radicool is a concentrated engine coolant for use in both petrol and diesel engines with aluminium or cast iron engines. This coolant can be mixed using 33% concentration with purified water to give frost protection to -18 deg C, however it is recommended to use a 50% dilution to provide optimum corrosion protection and freeze protection down to -36 deg C. At these concentrations this coolant will provides year round protection. To maintain optimum performance this product should be replaced after 1 year Specifications, Approvals & Recommendations
ASTM D3306 (I)
Engine coolant concentrate (“antifreeze”) conforms to the requirements of BS 6580:2010
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