How to change the engine oil to reduce the noise of the engine?

This still depends on the quality of the engine oil, I have been driving the car for seven years and the engine has no noise and shaking, mainly because the G Magic Red engine oil I use is of higher quality is PAO's fully synthetic engine oil, and there are liquid molybdenum additives to increase the anti-wear performance, even if it has been driven for so many years, there is no problem at all when the engine is inspected, and it is very clean.

After the car changes the oil, the engine becomes louder?

The causes and solutions of high engine noise are as follows:

1. Poor oil quality, if you use poor quality fuel, the combustion situation in the engine will become worse, so that the engine will vibrate violently and make noise. Solution: In this case, the engine noise can be reduced by replacing the fuel with better quality;

2. The engine is fixed and loose, you should know that the engine is not simply placed in the engine compartment, but supported and fixed by claw pads and other components, if those parts are aging and loose, it will cause the engine to produce noise when working. Solution: In this case, it is necessary to check the engine support and fixed parts, and generally tighten or adjust it;

3. The engine is noisy during cold start, and when the car is parked for a long time and starts, the engine will vibrate violently, and then make a "da-da" noise. This is because after the car is parked for a long time, the lubricating oil basically flows to the oil pan, and the oil pump can not immediately establish the oil pressure when the cold car starts, especially the valve inside the cylinder head, which cannot be lubricated enough when the cold car starts, and the hydraulic tappet and the mechanical rocker arm fail to work normally to cause the sound;

The reasons why the engine becomes louder after changing the oil are: 1. Too much oil filling;

2. The viscosity of the filled oil is not suitable.

The precautions for changing the engine oil are:

1. Carry out the hot car in the state of hot car and drain the old engine oil cleanly; 2. Add engine oil and ensure that the amount of engine oil is appropriate;

3. Start the engine after adding the oil, check whether there is leakage in each component, start the engine, stop running for 3 minutes, and confirm that the oil volume of the engine oil is up to the normal scale. Hope mine can help you, thank you, hope.

In this case, we must first determine whether the engine is loud because of the engine oil. If so, you can use a fully synthetic motor oil. There are some fully synthetic engine oils on the market that are not really fully synthetic engine oils, but are fully synthetic engine oils made of three types of oils.

There is also the oil with the corresponding viscosity.

1. In addition, there are many factors that cause engine noise.

In addition to psychological reasons, the main reasons are loose belts, high water temperature, excessive carbon deposition on throttle valves, air intakes, fuel injectors, damage to shock absorbers, poor fuel quality, and poor vehicle sound insulation.

Second, of course, engine oil is also an important reason.

1. When changing the oil for maintenance, the engine resistance will increase, increase the rotational resistance of the crankshaft, and increase the engine noise;

2. If the oil quality is not high, especially the inferior fake oil, the internal parts of the engine will not be lubricated as they should be, so that the engine wear will be more serious, the fuel consumption will increase, the engine noise will increase, the oil temperature will be too high, and the oil pressure fault light will be on when it is serious. Or because the engine is replaced with a new viscosity, because it is not adapted to the new oil viscosity, it will pull up the engine speed and lead to increased engine noise.

3. It is recommended to change the oil with a higher viscosity of one grade. As the mileage of the car is increasing, the structural parts of the engine are also constantly wearing, for a long time, the matching gap of each friction pair will become larger, we know that the noise is generated by vibration, and the matching gap will produce vibration, so as to radiate noise outward, when using the viscosity of the oil, the oil can form a good lubricating oil film in the matching gap, reduce the vibration, and the noise can be reduced.

To sum up, it is important to choose the best fully synthetic engine oil to change the engine oil, and do not blindly follow the well-known brand engine oil and accidentally fall into the trap of counterfeiting; In addition, it is recommended to choose a suitable oil to balance viscosity, you can refer to the car manual to recommend, if the car is in good condition, you can choose a low viscosity oil.

You can go to the vehicle repair shop and ask the staff to change the appropriate engine oil according to your own model, and also according to the weather.

I think you should choose a engine oil made by a large manufacturer, and you can choose a less viscous gasoline to reduce the resistance of the engine to run, so that the noise will be reduced.

I think it's best to buy a fully synthetic motor oil, with a low viscosity grade, which will reduce engine noise.

The noise is indeed related to the oil, I used to maintain the mineral oil for the car, the noise of driving is also very loud, there will be a very harsh sound after driving for a long time, and now I change the magic red engine oil for maintenance, the noise of driving has disappeared, and now no matter what kind of driving situation, the sound of the car is repentant and quietly held a special thick and strong, and the mute effect of liquid molybdenum is quite good. If you want to know more, you can take a look.

1. Carbon deposition in the engine, or noise isolation is not in place.

The engine is one of the main sound sources of the car, and the sound will increase significantly as the engine runs at high speed, but we need to carefully identify the noise of the engine**, if it is caused by engine shaking, it may be that a large amount of carbon deposits have been deposited inside the engine, resulting in insufficient fuel injection nozzle, and the fuel injection needs to be increased to provide sufficient power to the vehicle.

Second, the aging of the engine mount leads to abnormal noise.

The engine mount is a part that connects the engine to the body of the car, and if there is a problem in this part, the car will definitely make a noise. This orange is mainly made of metal and rubber, and over time, these rubbers will definitely age, so it will produce noise.

3. Tire size, size and model These factors will have an impact on tire noise.

Car tires are the part that has the most contact with the road surface, and the road surface has a lot of stones, so the noise will be greater than that of a flatter road surface. If the tires are very old and the vibration of the car cannot be eliminated in time, the car may be very noisy.

Fourth, the installation of soundproof materials inside the wheel arches has a miraculous effect.

The sound insulation inside the wheel arches also has a significant impact on the tire noise transmitted to the cabin. Since the inside of the wheel arch is a nearly semi-enclosed space, the noise will only subside after repeated ejection on the wheel arch wall, and if the sound insulation measures inside the wheel arch are not done well, or no sound insulation measures are done at all, the noise will be greatly improved.

Fifth, the door tightness.

If there is obvious wind noise at the door, or the noise on the left and right sides is obviously different, consider whether the rubber strip of the Changbo door is aging or cracked. Check the tightness of the adhesive strip around the door and repair or replace it in time.

6. Aging and short circuit of electronic components, resulting in noise.

In addition to the instrument and central control, there are many large and small electronic components and wiring harnesses in the car, and over time, the components are aging or the wiring harness is short-circuited, and some noise may be emitted.

7. Noise caused by cooling system.

The cooling system on the car is the guarantee that the whole vehicle components provide balance, if there is a problem with the cooling system, the operation of the whole vehicle will have problems, which will inevitably lead to abnormal noise and noise.