Whether it is ordinary antifreeze or long-acting antifreeze, it should be released in time when the temperature increases, which can prevent the corrosion of the machine parts. Because the addition of antifreeze preservatives will gradually decrease or fail with the increase of service time.

     What's more, some simply do not add preservatives, which will have a strong corrosion effect on the parts, so the antifreeze should be released in time according to the temperature, and the cooling pipeline should be thoroughly cleaned after the antifreeze is released. 

    It is not recommended to change cooling water frequently, because after a period of use of cooling water, minerals have been precipitated, unless the water is already dirty, may block the pipeline and radiator, do not easily replace. Because even if the newly replaced cooling water is softened, it still contains certain minerals, which will deposit in the water jacket and form scale.

    The more frequently the water is replaced, the more minerals precipitated, the thicker the scale, so the cooling water should be replaced regularly according to the actual situation. The cooling line should be cleaned when replaced, and the cleaning liquid can be made of caustic soda, kerosene and water. At the same time maintain the water switch, timely replacement of damaged switches, can not be replaced by bolts, sticks, rags and so on.