Can I mix different brands of antifreeze?The antifreeze mixture reacted unexpectedly

Different brands of antifreeze should not be mixed. Different brands of antifreeze contain different additives. If they are mixed, chemical reactions may occur and the antifreeze will lose its due effect.

The mixture of antifreeze and water reacts because water contains many minerals. After heating and evaporating, these minerals will form scale and deposit on the metal surface. If scale deposits in the water tank, it will affect the heat dissipation effect of the radiator; if scale is formed in the engine cooling system, it will block the water channel and affect its normal circulation, which will easily increase the local temperature of the engine and cause malfunctions.

When the antifreeze is mixed with other antifreeze, a chemical reaction may occur and damage the engine. If the original antifreeze is not used, the old antifreeze needs to be drained, clean the cooling system, and then add new antifreeze. .

In general, the replacement period of antifreeze is about 2 years or 40,000 kilometers, but some luxury cars (such asBenz) The replacement cycle will be longer, and the replacement cycle of antifreeze is as long as 10 years or 200,000 kilometers. For long-running vehicles, such as taxis, they can be replaced once a year. The specifics still need to be judged according to the maintenance manual or the actual situation.

The full name of antifreeze liquid is antifreeze coolant, which prevents the car from cooling and freezing when the car is parked, which may cause engine damage. In addition to the precautions that the antifreeze cannot be used or mixed with water, it is more important to note that the antifreeze should not directly touch the skin, because the ethylene glycol contained in the antifreeze is an organic solvent, which is corrosive to a certain extent. Direct skin contact.