When antifreeze is low, should it be added or replaced directly? Do I need to remove the original to add antifreeze?

Whether the antifreeze is added or replaced directly depends on whether the antifreeze has deteriorated after the shelf life has expired. Generally speaking, the shelf life of antifreeze is about two years, and the shelf life of some long-acting antifreeze will be longer, which can reach between three and five years. If the antifreeze is lacking during the warranty period, the owner can directly add antifreeze. If the antifreeze is no longer lacking within the shelf life, you need to release the remaining antifreeze, and then replace it with a new one.

Do I need to remove the original to add antifreeze?

It is not necessary to release the original antifreeze to add antifreeze. To replace the new antifreeze, you need to release the original antifreeze. When adding antifreeze, car owners must add antifreeze of the same brand and model. Because the main components of different brands and different types of antifreeze are inconsistent, there may be chemical reactions when mixed and used, resulting in poor antifreeze effect, deterioration, precipitation and blockage of pipes, etc., thus affecting the normal operation of the cooling system. The car is mainly to add antifreeze of different brands and models. Only the old antifreeze can be released before adding new antifreeze.

The car coolants on the market are generally general-purpose, generally 4 liters or 2 kilograms, and the price of car coolants is basically 60 to 100 yuan.YuanA bottle around. Different brands and models use different car coolants. The freezing point and boiling point of the coolant are different, resulting in different colors of the coolant. For example, the colors of the coolant are purple, blue, and green.

It should be noted that the antifreeze is sealed and circulated in the entire cooling system and will not be reduced under normal circumstances.FindThe antifreeze is significantly reduced, and it is necessary to check the pipes of the cooling system to see if there is any leakage.

If there is no obvious leakage in the pipeline of the cooling system, and the antifreeze is reduced a lot and quickly, then it is possible that the cylinder gasket is damaged, and the antifreeze flows into the cylinder and burns out, causing the reduction. This is usually accompanied by a drop in power and increased engine shake.