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RADIATOR FLUSH Wynn's RADIATOR FLUSH is a concentrated liquid which thoroughly cleans all automotive cooling systems. WHAT IT WILL DO • Removes rust, sludge, scale and oil deposits quickly and efficiently. • Provides improved coolant flow and a more efficient transfer of heat. • Compatible with all cooling system components including aluminium and rubber. WHAT IT WILL NOT DO • Will not correct mechanical malfunctions e.g. blocked or broken hoses. • Will not seal leaks in the cooling system or radiator. RECOMMENDED • When vehicle is overheating through poor heat transfer. • When there is a dirty or fouled radiator, cooling system or coolant. • When purchasing new anti-freeze. APPLICATION • For all water cooled systems of petrol and diesel engines. • Especially useful for cleaning older cooling systems. DIRECTIONS • Check coolant level. • Start engine, bring to normal operating temperature with all heater controls in HOT position. • Stop engine. • Drain the cooling system. • Shake well and pour total contents into the cooling system via the expansion tank if fitted (2 hoses: out and return), or directly into the radiator if a single hose overflow tank if fitted. • Fill with water. • Run the engine for 10-20 minutes with heater in HOT position. • Let the engine cool, then drain the cooling system. • Rinse the cooling system with water until water runs clear. • Fill with coolant. • Close the system. NOTE Wynn’s recommends Wynn's Radiator Stop Leak as a preventative against leaks.