The water tank is an important part of the water-cooled engine. As an important part of the cooling circuit of the water-cooled engine, it can absorb the heat of the cylinder and prevent the engine from overheating. Because of the large specific heat capacity of water, the temperature of the engine does not rise much after absorbing the heat of the cylinder, so the heat of the engine passes through the liquid circuit of cooling water, and water is used as the heat carrier to conduct heat, and then the heat is dissipated by convection through a large area of fins to maintain the appropriate working temperature of the engine.
Antifreeze should be checked regularly and replaced if necessary. Pay attention to the following points when replacing: 1, try to use the same brand of antifreeze; Different brands of antifreeze will have different production formulas. If they are used together, chemical reactions between various additives are likely to occur, leading to the failure of additives. 2. The validity period of antifreeze is mostly two years (individual products will be longer), and it should be confirmed that the products are within the validity period when adding; 3. When replacing antifreeze, clean the old antifreeze first, and then replace the cooling system with a new one after cleaning.