Is it normal to consume a lot of antifreeze in winter?
1, whether there is leakage in the water tank and pipeline;
2. Whether the gasket of the water tank cover is aging;
3. Whether the heater tank body (lower part of the dashboard of the cab), related pipelines and switch valve bodies are leaking;
4. Whether the engine cylinder gasket is intact;
5. If the water leakage is serious, the cylinder block trachoma should also be considered. This is a defect in the casting process of cylinder block, which is generally difficult to find.
Coolant consumption is normal. Although the environment of the water tank is completely closed, the kettle with liquid has a hole. If the pressure is too high, the coolant will flow out of this hole, so some cars will smoke at the engine when the temperature is too high, so the coolant will flow out of this hole and the liquid will stay on the engine. So even if the water temperature is not too high at ordinary times, there will still be some liquid flowing out of this hole, so the cooling liquid will be reduced at that time, and the design of each car is different, so the reduction situation is different.
If it is found that there is less antifreeze for civil vehicles, in fact, the water inside has evaporated, and the boiling point of ethylene glycol is 197.4 degrees, which will definitely not evaporate. When the ethylene glycol content is 60%, the freezing point can be reduced to -48.3℃, and beyond this limit, the freezing point will rise. If it is found that adding antifreeze is not necessarily a good thing, it is safer to buy a bottle of pure water to make it up, and drink the remaining half bottle of water by yourself.
In addition, 40% glycol and 60% soft water are mixed to form antifreeze, and the antifreeze temperature is-25℃; When ethylene glycol and water account for 50% and 50% respectively, the antifreeze temperature is -35℃.
So if there is less coolant, can I buy and add it? This is certainly possible, but it is best to add the same brand of coolant as before. If you can't buy the same brand, then buy at least one coolant of the same color. Coolants of different colors must not be mixed together.
There is also the freezing point temperature, preferably lower than the original car, so as not to affect the freezing point of the coolant after adding too much. When adding oil, it must be suitable for cold cars, otherwise it is likely to be scalded. When heating the car, it must open the lid of the pot, otherwise the coolant may spill out. However, I suggest you add it when the car is cold, but it is not allowed when it is hot.