What is the effect of not changing antifreeze for a long time on the car?

What is the effect of not changing antifreeze for a long time on the car?

The antifreeze of the original car has excellent anti-corrosion and anti-freezing performance and does not need to be replaced in advance. Usually it can be used for five or six years. Just say you want to change it, say it will be invalid. Don't believe it. If you are really worried, some water leaks in the car are transparent, and the color of antifreeze can be seen from the appearance of the jar.

Some water is poured directly into the water tank. The car can be opened when it is cold. Remember to warm up when you take the bus, and don't open it, because the internal pressure is very high, which will burn your hands and face. You'd better get up in the morning and open the water tank when you see the color. The colors of antifreeze are basically red and double green.

Obviously, the antifreeze has completely recovered. If the color becomes cloudy, it is not too late to replace it. Antifreeze must have heatstroke prevention and antifreeze performance, especially when working at high temperature, the refrigeration pressure will be greater. In addition, if the vehicle is started and parked in winter.

For a long time, especially at night, the temperature is getting higher and higher. At low temperature, the water tank will freeze, the car will not catch fire, and the water tank pipeline of the cooling system may break. However, after antifreeze is used for more than a certain period of time, additives, antifouling agents and other components will change, which will affect its continued function.

Copper and aquarium solder, all kinds of metals and nonmetals, such as rubber and plastics, and nonmetallic materials to prevent metal corrosion and expansion, antifreeze has anti-corrosion effect and certain lubrication effect. The main components of antifreeze are water and ethylene glycol, so it has anti-corrosion and anti-tumor effects.

There are also corrosion inhibitors, defoamers, dyes, antifungal agents, buffers and so on. These alkaline substances will weaken antifreeze and cause metal corrosion. In the cooling system, many parts such as engine water channel, radiator, throttle, hot air box, hose, water pump, thermostat, etc. Antifreeze must be connected.

Therefore, the materials in these parts should not be corrosive. Therefore, when preservatives are added to antifreeze, with the use of antifreeze, its antiseptic components are gradually consumed, and at the same time, some other chemical reactions will occur, which will make antifreeze turbid and deteriorate. Therefore, antifreeze must be replaced regularly.

Usually, different antifreeze has different service life. At present, there are mainly two kinds of antifreeze. One is inorganic antifreeze, which has a short service life and is mostly green and environmentally friendly. The other is organic antifreeze, which has a long service life, exceeding 6,543,800 kilometers. It only needs to be replaced regularly according to the requirements of the user manual.

Some car owners find that antifreeze is insufficient and want to add water. This is not a practical method at all. If the expedient measure is the solution chosen because the vehicle's cooling system fails, that's good, but if they don't want to replace it and use this system, then the cooling system has power.

Generally, if the antifreeze is not replaced for a long time, the anti-corrosion, anti-rust and anti-scaling effects of the antifreeze will be reduced due to the attenuation of the antifreeze, and the cold spot and boiling point will also change, resulting in easy corrosion inside the machine and uneven treatment, so the antifreeze will harden in high temperature and winter and damage the machine.

With the increase of mileage, the antifreeze will inevitably change. Due to long-term heating, the antifreeze will be partially oxidized, and the acid-base balance will be destroyed. The engine, pipeline and radiator will gradually corrode and leak easily, and the formed residue will gradually block the pipeline. For the radiator with the smallest diameter, blockage will reduce the heat dissipation efficiency of the machine.

According to the automobile brand, it is recommended to circulate antifreeze again after circulation, so it should be replaced according to the replacement cycle recommended by the manufacturer.