How to use engine coolant and where to add engine coolant

Use of engine coolant:

Do not add tap water or sewage.

After the tap water and sewage are heated and evaporated by the engine, they are precipitated to form scale. Scale, on the other hand, is a conductor of poor heat dissipation, and at the same time narrows the pipeline, which will affect the heat dissipation of the engine and cause the engine to overheat.

Don't leave it alone.

Replace the coolant regularly, fill the engine with coolant, after working for a period of time, the water tank cover should be opened for inspection, and when the water tank appears water pollution, rust and sediment, the coolant should be replaced in time.

Do not run without water.

When driving in hot weather, always pay attention to check the amount of coolant and pay attention to the coolant temperature gauge. The engine should be started after the water filling port shows that it is full, so that the air in the water jacket can be discharged, and then the water tank can be filled.

Add antifreeze to the coolant.

Antifreeze prevents the coolant from boiling prematurely, raises the boiling point of the coolant, and prevents the tank from "boiling" prematurely. In addition, the rust inhibitor in the antifreeze can delay or stop the rust and corrosion of the engine jacket wall and radiator.

Do not touch antifreeze with the human body.

Antifreeze and its additives are toxic substances, keep out of contact with them, and keep them in a safe place.

Do not mix antifreeze.

When replacing the coolant, the cooling system should be rinsed with clean water before adding new antifreeze and water. Leftover antifreeze should be named on the container to avoid confusion.

Some car owners think that the purer the coolant, the better, the greater the concentration, and even directly fill the coolant mother liquid, in fact, generally speaking, the coolant works best when mixed with pure water at 6:4. Above this concentration, the cooling effect will deteriorate, and some unexpected phenomena will occur, such as coolant deterioration.

Phenomena such as increased viscosity and poor engine cooling effect.

Therefore, when using coolant, be sure to modulate it according to the requirements.

Coolant should be checked regularly during use.

The coolant can be used continuously. However, it is necessary to go to the special car repair station to ask a professional technician to check the coolant every year in conjunction with seasonal maintenance. The inspection content should include freezing point inspection and specific gravity inspection.

At the same time, the coolant in use should be visually inspected, and it should be replaced in time when the specific gravity increases, the coolant thickens, the freezing point rises, and the coolant becomes turbid, deteriorates, tastes, and foams.

There is a trick to checking the coolant level height.

In daily use, the coolant level should be checked at the normal operating temperature of the engine, and only the front cover of the engine should be opened during the inspection. Just observe the liquid level height in the expansion tank. A normal liquid level should be between min (lowest level) and max (highest level) mark.

Pay attention to the automatic liquid level alarm equipment in time.

The expansion tank is equipped with an automatic liquid level alarm device. When the liquid level is too low, the coolant temperature level warning light located in the instrument panel flashes continuously. At this time, you should go to the car maintenance station for professional inspection and maintenance in time.

Standard practice for adding coolant.

When the liquid level is lower than the min (minimum liquid level) mark, you should go to the special maintenance station in time to add coolant. In case of special circumstances, you must deal with it yourself, remember not to open the expansion tank lid in the hot state to avoid being burned. The correct way is to wait for the coolant temperature to drop after the shutdown is turned off, pad your hands with a wet towel and loosen the expansion tank cover first.

Drain the water vapor and wait a few moments before turning it all on.

The engine coolant is added to the small water tank injection port under the front machine cover, and the specific operation steps of adding engine coolant are as follows:

1. Open the driver's door of the car.

2. Pull the hood switch of the car.

3. Lift the hood of the car's engine.

4. Use the support rod to support the engine hood of the car, and ensure that the support is firm to avoid danger during operation.

5. Slowly unscrew the lid of the car's water tank and release the internal high-pressure gas.

6. Fill the small kettle of the car with cooling water to the max position.

The question is where the coolant is added.

1. Unscrew the water tank cover, open the water tank discharge valve, and release the antifreeze. 2. Insert a rubber pipe connected to the tap water pipe into the water tank filling port, open the tap water, and make the tap water flow through the engine cooling system continuously. During the flushing operation, the engine should be idle until the water tank is released.

3. Close the tap and close the water tank drain valve after the water in the cooling system is exhausted. 4. Add antifreeze from the water tank inlet to fill the water tank. Unscrew the lid of the reservoir, add antifreeze, and reach the "MAX" scale, taking care not to exceed the "MAX" scale.

1. Unscrew the water tank cover, open the water tank discharge valve, and release the antifreeze.

2. Insert a rubber pipe connected to the tap water pipe into the water tank filling port, open the tap water, and make the tap water flow through the engine cooling system continuously. During the flushing operation, the engine should be idled until the water tank is discharged.

3. Close the tap and close the water tank drain valve after the water is exhausted to cool the Dahui old system.

4. Add antifreeze from the water tank inlet to fill the water tank. Unscrew the reservoir roll-up cap, add antifreeze, and reach the "MAX" scale, being careful not to exceed the "MAX" scale.

5. Close the lid of the water tank and the lid of the liquid storage tank, and tighten it.

6. Start the engine, idle for 2 3 min, and unscrew the water tank cover. At this time, the cooling system will lower the level of antifreeze due to the removal of part of the air, and the antifreeze should be replenished again until the antifreeze reaches the "max" scale mark.

Generally, the coolant is added from the coolant reservoir, which is in the engine compartment and can be seen when the engine compartment cover is opened.

1.First of all, buy or purchase antifreeze suitable for your car, and be sure to choose the antifreeze suitable for your car, especially if your car is a high-end sedan or a better, better car.

2.You can check the specifications or models of antifreeze according to the car antifreeze used before your car, and then go to the after-sales maintenance service store to buy, or go to the official website to buy, or directly search for multiple specifications and models of antifreeze on the Internet to buy directly, but you must pay attention to choosing the correct and suitable more formal ** or store.

3.After checking and confirming the specifications and models of antifreeze, the antifreeze is added, first open the hood of the antifreeze, which is generally the water tank of the antifreeze under the hood of the engine. It is necessary to pay attention to distinguishing the difference between the car antifreeze filling port and the automobile glass water filling port.

The switch on the hood of the engine is usually on the lower left side of the steering wheel or next to the driver's door on the left side of the cockpit, so be sure to see it clearly and choose the correct button switch.

4.After opening the hood of the driving engine, check whether the water level of antifreeze needs to be added, or if you want to run a long distance or run to a high wave or cold area, you must check in advance, find the filling port of antifreeze, and then check the water level of antifreeze, if it is lower than the standard water level, then you need to add and refill. If you are a female driver or you don't know much about mechanical machines, you can go directly to the after-sales car repair shop or car service point, and directly ask the car master to add an annotation, pay attention to be sure to do such a job when the car is cold or at high altitude.

Supplement: Coolant, the full name should be called antifreeze coolant, which means coolant with antifreeze function, coolant is composed of water, anti-panicle freezer, additives, according to the different components of antifreeze can be divided into alcohol, glycerin, ethylene glycol and other types of coolant. Alcohol-based coolant has been gradually eliminated, glycerin coolant has a high boiling point, low volatility, not easy to ignite, non-toxic, and less corrosive, but the effect of reducing the freezing point is not good, the cost is high, it is expensive, and it is difficult for users to accept, only a few Nordic countries are still using it, ethylene glycol coolant is made of ethylene glycol as an antifreeze, and a small amount of anti-foam, anti-corrosion and other comprehensive additives are added, which can be arbitrarily prepared into a variety of freezing point coolant, and its lowest freezing point can reach -68, this coolant has a high boiling point and low foaming tendencyIt is an ideal coolant for rock and air, and the coolant used in engines at home and abroad and the most advanced in the market is almost this glycol coolant.

Photo by Yang Weilin) @2019

I think you have all read or used antifreeze and coolant, are there many people who still can't figure out this, antifreeze is the same as coolant? Naturally it's different. So what does this have to do with each other, in other words, what is the difference? Let's take a look.

What is engine coolant? Coolant, to put it bluntly, is a liquid state that can deheat the engine, which circulates the fluidity in the engine refrigeration system, and brings away the excess heat energy formed by the engine work, so that the engine can run at all normal operating temperatures, and has a refrigeration effect.

Antifreeze coolant, the full name of antifreeze coolant, is a coolant with a unique addition to the antifreeze effect. Antifreeze not only prevents freezing, but also has the effects of refrigeration, anti-corrosion, and anti-scaling. Antifreeze can be used for a long time, while coolant is only applied in summer, and the temperature is low in winter, and the coolant has an antifreeze effect and is very easy to freeze.

In short, coolant is not the same as antifreeze, and antifreeze can be equivalent to coolant.

At this stage, the vast majority of antifreeze on the market is all ethylene glycol water-based type, and the validity period of this kind of antifreeze is about 2 years, therefore, it is proposed to replace the cycle time every 2 years or more than 40,000 kilometers per car. This is only for the vast majority of family car models when the reference period of the spring stool is trapped, in fact, according to the real application situation to select and replace.

Millions of car purchase subsidies.