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List of contents of this article:

• 1,casino plus free 100 Why should car antifreeze be divided into different colors?
• 2, Car coolant knowledge you don't know
• 3,< A href='#How to replace the car coolant?' title='How to replace the car coolant?' > How to replace the car coolant?

Why should car antifreeze be divided into different colors?

Different brands of cars will choose different consumable suppliers during the production process, which causes the glass water of the vehicle to be blue, yellow or red. In order to facilitate maintenance, coolants of different colors will be used in a targeted manner.Now you should be able to understand why the coolant is colorful. In fact, it is to facilitate the distinction.

Because the antifreeze formula is different, the color is different. In general, blue represents propylene glycol, green represents ethylene glycol, and pink represents propylene glycol. These are the colorants added, not the color of the antifreeze itself.

The composition of red antifreeze is different from that of green antifreeze. The main component of red antifreeze is propylene glycol, and the main component of green antifreeze is ethylene glycol. The main ingredients of antifreeze are ethylene glycol, propylene glycol and diglycol, silicate, etc. The mixed solution formed by mixing these mother liquors with pure soft water in different proportions is called antifreeze.

Why? Therefore, the coolant is toxic and colorless. Therefore, in order to achieve the necessary warning effect, most coolants will basically add particularly bright dyes.

knowledge of car coolant you don't know

1. The boiling point of antifreeze is high: the boiling point of water is 1 00℃, the boiling point of high-quality antifreeze coolant is usually 110℃ above zero. In this way, when used in summer, antifreeze coolant is more difficult to boil than water.

2. Coolant, the full name should be antifreeze coolant, which means coolant with antifreeze function.

3. Moreover, if you find that the antifreeze coolant is lower than the minimum value and there is no antifreeze coolant nearby, you can also add water to temporarily replace it. After all, the reduction of antifreeze coolant is mainly caused by the evaporation of moisture. Seeing this, everyone should know when to replace the antifreeze coolant and how to choose.

4. Coolant hot expansion and cold shrinkage is a very common phenomenon. It will appear in almost all cars, but because there is a liquid level scale as the standard, it can be checked intuitively.

5. Antifreeze is mostly alcohol, which can prevent calcium and magnesium precipitation caused by the hardness of water, so as to avoid formation at the end and blockage.

How to replace the car coolant?

Turn off the engine before replacing the antifreeze and wait for about 30 minutes to let the antifreeze cool down.Then lift the vehicle with a jack. Use a wrench to unscrew the screw of the bottom shell of the water tank (located on the back of the water pipe in the figure below) and use the waste liquid basin to handle the old liquid. Then open the lid of the box with a wrench and be careful not to get burned.

Tring off the water tank cover, open the water tank release valve, and release the antifreeze; clean the cooling system: insert a rubber pipe connected to the tap water pipe into the water tank inlet, open the tap faucet, and let the tap water flow continuously through the engine cooling system.

In addition to antifreeze in winter, antifreeze also has anti-boiling, anti-scale, anti-corrosion, anti-rust and other functions. Generally, it is considered to be replaced in about 3 years.

Hello! The method of changing the coolant is as follows: first, put the engine in a cold state, otherwise it is easy to splash out when filling the coolant. Then you can open the hood and find the coolant storage tank of the engine.

The steps to replace the antifreeze coolant are as follows: confirm that the vehicle has been parked on the flat ground and the engine has cooled down. When replacing the antifreeze coolant, the engine will cause serious burns in a high temperature state. Find the antifreeze coolant box in the engine compartment, open the lid and check the amount of antifreeze.

The way to replace the antifreeze is very simple: after opening the top cover, unscrew open the water tank cover, and then open the release valve of the water tank to release the antifreeze. Find a pipe that can be connected to the tap water pipe, insert the pipe into the water inlet of the water tank, turn on the faucet, and let the tap water flow continuously through the engine cooling system.