Which is the best Nissan Liwei antifreeze to choose, and how to change it?

Procedure for changing the antifreeze in the water tank:

1.Open the lid and unscrew the water tank cap.

2.Unscrew the water switch and drain the original water from the tank at the bottom of the tank.

3.After the water is discharged, when the water drain switch is installed, an appropriate amount of liquid sealant should be applied to it.

4.At this time, when filling the water tank with antifreeze, do not add water, because it is easy to cause the water tank to scale and rust, and do not fill the antifreeze with different colors.

5.After filling the water tank, start the car and let the antifreeze in the water tank circulate, at this time also pay attention to whether the antifreeze in the auxiliary tank is not.

6.After the operation is completed, check the entire water tank and even the pipeline to see if there is any leakage, once the leakage, you must re-drain the antifreeze, solve the leakage, and then start.

For Dongfeng Nissan Liwei models using Dongfeng original antifreeze, it is recommended that you go to the maintenance store for replacement or purchase, if the engine cooling system is damaged because of the wrong antifreeze model, even during the warranty period, Dongfeng Nissan will not give a warranty. Different brands of antifreeze have different chemical compositions, and they are easy to deteriorate when mixed together, and if they are of the same brand, they cannot be mixed together, because they cannot be guaranteed to be exactly the same in terms of safety, and they cannot be mixed.

It is recommended that you use the Nissan one. There is a drain plug under the water tank, from which the old antifreeze can be drained [If there is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Use Nissan's special antifreeze, there are screws at the bottom of the water tank, and you can be waterproof if you loosen it [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Shell [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The specific operation steps of Liwei to change antifreeze are as follows:

1. Turn off the engine by twisting the car key of Liwei.

2. Stand the engine until the water temperature drops to room temperature.

3. Open the front engine cover and support it steadily.

4. Slowly unscrew the lid of the water tank and release the pressure in the pipeline.

5. Disconnect the return water pipeline of the water tank, drain the antifreeze, and then connect it.

6. Fill the mouth of the water tank with antifreeze.

7. Run the engine until the water temperature reaches 90 degrees and no longer rises.

Nissan Jiangwei's auxiliary water tank is equipped with antifreeze, which can help the engine run normally in a low temperature environment. If you want to check if the antifreeze is sufficient, you can open the lid of the auxiliary tank to see if the water width of the antifreeze is lifted to the standard position. Just like the water in the sink, if the water level reaches the standard position, it means that it is enough, and if the water level is lower than the standard position, it means that it is not enough and you need to replenish antifreeze.

The specific operation steps of Liwei to change antifreeze are as follows:

1. Turn off the engine by twisting the car key of Liwei.

2. Stand the engine until the water temperature drops to room temperature.

3. Open the front engine cover and support it steadily.

4. Slowly unscrew the lid of the water tank and release the pressure in the pipeline.

5. Disconnect the return water pipeline of the water tank, drain the antifreeze, and then connect it.

6. Fill the mouth of the water tank with antifreeze.

7. Run the engine until the water temperature reaches 90 degrees and no longer rises.

There is a water plug under the water tank, just unscrew it, and the effect is better after the hot car because the thermostat has been opened, but before putting the water tank cover to ventilate, you should first find a few pieces of cloth to pad the water tank cover and slowly unscrew it, be careful not to burn. When adding water, you should also pay attention to unscrew the deflating screw before adding water, let the water push the air out (otherwise it is easy to hold air), and then tighten it after the water flows out. Then get into the car, let the water temperature reach normal, and wait for the electronic fan to work before it is completed.

Color... As long as the color is the same, such as green plus green, red plus red. You don't have to use the original factory, the original car is green but you can also replace it with red, as long as you add water to the water after putting the original car liquid and then put it off, just come a few more times, my car antifreeze is off the line, I added it to the line, and I measured the freezing point by myself -35 degrees.

Although it is not a brand, the color is the same, and nothing happens.

Raise the car, there is a small screw directly in front of the front near the front of the car, unscrew it and release the antifreeze from the tank, and then add a new one.

The reality is:

Don't be superstitious about the original antifreeze, that's what I do.

The first thing you should do when you buy a new car is to replace all the antifreeze of the original car, go to the specialty store to buy a famous brand, and recommend Blue Star and Great Wall. It must be bought in a specialty store. Domestic automobile manufacturers have poor quality awareness and the quality of antifreeze used is inferior. I haven't seen a manufacturer use a brand-name anti-movement fluid.

Second, professionally speaking:

Different brands of antifreeze cannot be mixed due to the different additives used, and if they are mixed, they may cause chemical reactions due to compatibility problems.

Third, in terms of practical use:

Add antifreeze all year round, and don't use water. Antifreeze is not only anti-freeze, but also anti-corrosion and anti-scale.

Finally, from the perspective of quality, it is often more expensive, but the more cost-effective it is for you, don't be greedy for a little money and regret it when the car is damaged and repaired. A good antifreeze can not be changed for 3 years, and you will not need to repair the water tank for 10 years.

It is still recommended to go to the 4S store to change more securely, and most of the outside purchases are the color of the water,

You can go to the car repair shop and ask the master to change the antifreeze.

If you buy it yourself, the way to choose antifreeze is to know how many degrees below zero is the minimum temperature in the local winter, such as -23 degrees in Beijing. In this case, choose antifreeze at -25 degrees or -35 degrees. The lower the temperature, the higher the antifreeze**.

Secondly, be sure to choose a brand of antifreeze. For example, the domestic Lanxing or imported Jiaoma, Mobil and other third antifreeze are divided into two types: long-acting LLC and ordinary antifreeze. Long-lasting antifreeze can be replaced after two years of use, and after one year for normal use.

Finally, be sure not to add water after draining the antifreeze in summer. There are various metal particles in the water that are harmful to the water tank, and the antifreeze is anti-freezing in winter and high temperature in summer.

When the temperature of the coolant is low, open the filling port of the water tank and use a screwdriver to loosen the waterproof plug (rotate counterclockwise) to let the coolant flow clean. Twist the fixing wire and add new coolant.

It is advisable to use a fully synthetic motor oil because it lubricates well and can extend the life of the engine.

Fully synthetic motor oil.

Fully synthetic motor oil is the highest grade of motor oil. It is ethylene and propylene dispersed from gas or natural gas in **, and then refined into a lubricating liquid composed of macromolecules through complex chemical reactions such as polymerization and catalysis. In essence, it uses the best ingredients, chemical reaction and artificial control to achieve the expected molecular form, the fully synthetic oil molecules are arranged neatly, the ability to resist foreign variables is naturally very strong, so the physique is better, thermal stability, antioxidant reaction, and the ability to resist viscosity changes are naturally much stronger than mineral oil and semi-synthetic oil, so it is also the highest.

There is no best choice of engine oil, only better, you can look at the maintenance manual, which indicates what level of viscosity is used, I am now using Zhongfu Petrochemical - Zhongfu Samsung lubricant SN fully synthetic 5W-30, not bad.