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Empty and flush the cooling system with deionised water.
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Dilute the concentrate on the basis of the table below and fill it into the system.
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Operate the motor until the opening of the thermostat to let the coolant completely fill the cooling system.
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After stopping the engine, if necessary, fill some coolant into the expansion tank.
PRELIX ALU12+ conc. (volume) 1 1 1 Deionised water (volume) 3 2 1 Frost resistance (°C/°F) -12/10.4 -19/-2.2 -38/-36.4