Bardahl Radiator Oil Remover SpecificationsBardahl Radiator Oil Remover cleans and degreases oil-polluted cooling systems without disassembly. Its immediate action emulsifies the oil and effectively removes all types of organic deposits gum and dirt. Packaged in a 500 ml bottle this product also ensures optimum system operation by preventing overheating and potentially the replacement of costly parts.How to use: With the engine cold and switched off pour the contents of the bottle into the radiator or expansion tank. Run the engine at idle for 15 minutes with the cabin heater set to the warm position. Allow the engine to cool then drain and rinse the system with clean water. Fill the system with new coolant. One bottle treats up to 10 litres of coolant.