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(III) Coolant Fluid
Diesel engine shall use antifreeze coolant fluid (which may use alcohol and glycerin mixture or glycol).
It has the necessary performance of antifreeze, anticorrosion, antiscale and increasing boiling point.
If there is no antifreeze fluid, clean soft water, such as river water, rain water, shall be used, which has
poor mineral composition and little scale deposit after heated so that the cooling system will not be
clogged easily and affect heat dissipation.
Notice:
1. Constantly use coolant fluid and pay attention to the continuity of the usage. Please notice that
coolant fluid has not only the function of antifreeze but also the roles of anticorrosion, antiboiling and
antiscale.
2. Select coolant fluid with different freezing point based on the air temperature of the region the
diesel engine to be used. The freezing point shall be10
℃
lower than the min. temperature of this
region at least so as to avoid malfunctioning.
3. Purchase qualified product and do not buy inferior one on the cheap so as to avoid damages on
engine and cause unnecessary loss.
4. Different brands of coolant fluid are not allowed to be used together so as to prevent chemical
reaction and destroy the comprehensive performance of anticorrosion.
