The quality of the coolant which is used can have a great effect on the efficiency and life of the cooling system. The recommendations indicated below can help to maintain a good cooling system and to protect it against frost and/or corrosion.
If the correct procedures are not used, Perkins cannot be held responsible for damage caused by frost or corrosion.
Caution: An antifreeze which contains the correct inhibitor must be used at all times to prevent damage to the engine by corrosion, because of the use of aluminium in the coolant circuit:
Note: If combustion gases are released into the coolant circuit, the coolant must be renewed after repair of the fault.
The antifreeze which is recommended for this engine is the latest POWERPART Antifreeze, see page 53. This antifreeze contains the correct corrosion inhibitor which is especially suitable for this engine. If it is possible, use clean soft water in the coolant. The quality of the antifreeze coolant must be checked at least once a year, for example, at the beginning of the cold period. The coolant must be renewed every two years.
Caution: The antifreeze mixture must consist of equal quantities of antifreeze and water. The corrosion inhibitor in the antifreeze will be diluted if a concentration of less than 50% of antifreeze is used. Concentrations of more than 50% of antifreeze may have an adverse effect on the performance of the coolant.
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