What brand of engine oil is good for driving noisy recently?

If you have recently driven and found that the engine noise has become louder, it is mostly caused by oil recession, you can change a better oil to improve this situation, the best choice is German GT engine oil, the durability of this engine oil is also the best at present, and the quietness is also excellent, fully meet your requirements.

I've been using Castrol EXTREME and it feels pretty good, fully synthetic motor oil. The loud sound may not necessarily be related to the oil, or it may be that some parts of the engine are worn, so go to the store to check it if it is serious.

There are many reasons for loud noise in the car, and engine oil is one of them. Lack of oil, mismatch of model, and failure to replace maintenance over the cycle will cause poor engine lubrication to varying degrees, thereby aggravating engine wear, and the noise of the engine will increase significantly. In addition, the interior noise may also be wind noise and tire noise, of which the wind noise is large in addition to the design reasons, should minimize any modification on the appearance, because this will destroy the vehicle drag coefficient of the car, and then affect the stability and quiet performance of the whole car in the aerodynamic range, wind noise also need to check the closure of windows, sunroofs and other positions.

Tire noise is usually related to tire selection and tire wear, the noise performance of tires with different patterns and widths is different, and the difference in use time will also cause a gap in noise performance.

Finally, after excluding the above reasons, you can try to strengthen the sound insulation and noise reduction treatment for the whole vehicle, mainly the engine compartment, four doors and the trunk position to install sound insulation material interlayer, pay attention to the selection of fire and temperature resistance level of sound absorption materials.

The noise caused by cold start is too loud.

More than 90% of the wear and tear of the car occurs at this time of cold start, which is estimated to be the opinion of most car lovers, because of the cold car state, more than 80% of the oil is basically returned to the oil pan, and the internal parts of the engine lack lubrication.

When the cold car starts, the engine temperature is low, the lubrication performance of the oil is not in the best state, and the engine is preheated up faster and increases the speed, which causes the noise to be large, and after the hot car, the noise and speed will be reduced, which is a normal situation, and there is no need to worry too much.

I used to use high-viscosity engine oil, but now I have changed the low-viscosity engine oil, such as the vehicle manual originally required to use 5w30, many riders did not pay attention, directly to use the 5w-40 oil, the result is not suitable for their own car, and then after changing to 5w30, the noise was high at first, and it came down after driving for a while, which is normal.

If the sound has not come down, it is not normal, it is recommended to change to the label required on the manual, Tips: The vehicle has reached a certain mileage, such as 6 80,000 kilometers, the internal clearance of the engine increases, and the oil with higher viscosity is changed, and it is usually not recommended to change back to the low viscosity, because after changing back to the low viscosity oil, it needs to be re-run-in, which will aggravate the wear of the parts and make a lot of noise. In case of special circumstances, it is best to change the brand without changing the brand, which is recommended in the vehicle manual, and the viscosity of another brand of oil is still used.

When changing the oil, it is common to choose a few big brands such as: Shell, Mobil, Castrol. Brand oils all have their own characteristics.

1. Shell. It has the advantage of removing deposits from the engine and effectively protecting the engine.

2. Mobil. The main advantage is the stability at high temperatures, and at the same time, the low temperature start-up performance is very good, and it can also effectively prevent the formation of sediment and sludge. 3. Castrol.

The main advantages are that the cold start effect is good, the wear resistance is better than other engine oils, and the effect of reducing the noise of the engine is very good, but the cleaning ability is not as good as that of Shell and Mobil products of the same level, and the oil decays relatively quickly.

Now I changed the low-viscosity engine oil, such as the vehicle manual originally required to use 5w30, many riders did not pay attention, directly to the use of 5w-40 oil, the result is not suitable for their own car, and then after changing to 5w30, the noise at the beginning, after driving for a period of time, it came down, this is a normal situation.

The engine is noisy, and with 5w-30 oil, the noise will be lower. Engine oil is as important to the engine as blood is to the heart. Engine oil contains a variety of additives, which can effectively protect the important moving parts of the engine and ensure the normal operation of the engine.

Oil selection method:1. Hand twisting:

Twist the lube between your thumb and forefinger and grind repeatedly. A good-feeling lubricant should be lubricating, less abrasive, and frictionless. If there is a large friction sensation such as sand between the fingers, it means that there are many impurities in the lubricating oil, which can no longer be used, and the lubricating oil needs to be replaced with a new one.

2.Lighting method: On a sunny day, use a screwdriver to lift the lubricating oil at an angle of 45 degrees.

Compared with the sunlight, observe the oil droplets, under the light, you can clearly see that the lubricating oil has no wear debris is superior and can continue to play a role. If there is too much wear debris, the lubricant should be replaced. 3.

Oil droplet tracing method: Take a clean white filter paper and put a few drops of oil on the filter paper. After the lubricating oil leaks, if there is black powder on the surface and there is an astringent feeling when touched with your hands, it means that there are a lot of impurities in the lubricating oil.

A good lubricant has no powder, it is dry and smooth to the touch of the hand, and it is a yellow mark.

and Shell, which are divided into semi-combined engine oil and synthetic engine oil. At Shell, the Van Chao Heineken range is a top-of-the-line lubricant used in most luxury or high-performance sports cars. It is characterized by being clean, stable and quiet.

According to the actual situation of the model, choose different brands of engine oil. Generally speaking, there are three main types of motor oils currently on the market, which are mineral oil, semi-synthetic motor oil, and synthetic motor oil. In fact, mineral oil is extracted directly from petroleum components.

Synthetic motor oil is composed of the lighter ethane and propane in ** or simple car coal, which is then cracked into ethylene again, and then chemically produced into a new substance. Semi-synthetic motor oil refers to the refined blend of mineral oil and all synthetic motor oils in a certain proportion. For example, Shell Helix has the most powerful cleaning effect, which can better ensure the normal operation of the engine and improve its operating ability.

Shell is one of the world's largest oil companies with a long history. With its quality and brand recognition, Shell has managed to capture a sizable share of the market. In order to meet the actual needs of different models and consumers, Shell has classified the colors of its drums.

Different colors represent different uses and grades, which helps consumers to choose. For example, the gray shell is all synthetic oil, and the blue shell is half of the synthetic oil.

Millions of car purchase subsidies.

Engine noise should be determined according to which case the oil should be changed. The engine has a long service life and a lot of wear. Due to the lack of viscosity of the oil, the noise is high.

Higher viscosity oil needs to be changed to achieve better seal lubrication and reduce engine noise. The engine is designed with high precision and the oil level is strictly required. The use of miscellaneous brand oil cannot meet the requirements of engine running lubrication and high oil fluidity, resulting in high engine noise.

It is necessary to replace the high-end synthetic engine oil of the brand oil, which has high fluidity, strong high temperature resistance, stable lubrication and wear resistance, so that the engine can achieve the due silence.

Engine oil is not only lubricating, but it also has a very important role to play in taking away the dirt inside the engine. The dirt is filtered out. If you change the oil without changing the machine filter, the dirt can't be completely removed, so there is no point in changing the oil.

To change the oil, you must change the machine filter, which is a dead rule. Engine oil mainly lubricates the various parts inside the engine, especially the piston and cylinder walls. Among them, the product of combustion is a dark colloid, so the oil changes color from the first day after it is injected into the engine.

However, the oil for normal use should be dark brown. There is also a problem if it is a completely pure deep black. The oil change interval may be too long.

Each brand of oil additives is different, and mixing may cause chemical deterioration, so mixing is seriously not recommended. Mechanical failure, no matter how good the oil you change, it's all waste. If you notice an abnormal sound, check the source of the sound first, and then maintain and rule it out, which is better than changing the oil.

If you want to be serious about engine oil, you can choose an oil with a high oil viscosity Theoretically, the higher the oil viscosity, the less engine noise. However, you should consider whether a high-viscosity oil is right for your engine and the impact it will have on power and fuel consumption.

The magnitude of engine noise depends on the characteristics of the engine itself and the sound insulation of the vehicle. The characteristics of the engine itself cannot be changed. For example, an engine metal chain that uses a timing chain will produce more noise when operating than a timing band.

Some engines are inherently noisy, and this cannot be changed. Therefore, the most direct way to reduce engine noise is to improve the sound insulation of the vehicle. Change the oil to improve noise and only change the oil with a higher viscosity.

However, it should be noted that the viscosity value should be within the range specified by the manufacturer. There is no guarantee of what will happen if it exceeds the range specified by the manufacturer.

I think so, I think the viscosity of the oil should be selected according to the local temperature, which is good for the lubrication of the engine.

I think it will make the engine sound, and I think you should use a fully synthetic oil, which is the best for the engine.

It will affect the engine and cause the engine to become louder. It is advisable to choose a fully synthetic engine oil, which provides the best protection for the engine.

Suppose that after changing the new oil, the engine starts to get louder, and the owners don't have to worry too much. It is recommended to familiarize yourself with it for a while before observing, but if this situation still occurs after a while of familiarization, it is recommended that the owner needs to go to the repair shop for inspection. Causes of engine noise:

1. Too much oil: If the oil in the engine is not filled, or you wave your hand to put too much oil in for treatment, your car may face the situation of burning oil. Especially at high speeds, the engine workload increases and the engine compartment becomes louder.

Therefore, after refueling, be sure to measure with an oil dipstick, if you add too much, please go to a nearby repair shop to extract, do not affect the state of the engine; 2. Engine carbon deposition: During the full combustion process of the engine, after the combustion of part of the high-viscosity oil, part of the oxidation does not completely stay on the engine combustion chamber and spark plug, and carbon deposition is inevitably formed. After adding new oil, due to the mismatch with the viscosity of the old oil, it leads to carbon accumulation, the engine speed increases, and the sound is too high; 3. The viscosity of the engine oil is not suitable

As mentioned earlier, the viscosity of imitation blue oil is not suitable for the machine and it is easy to accumulate carbon, resulting in high engine noise. On the other hand, if the viscosity of the oil is too low, the lubrication will be insufficient, and the worn engine parts will produce abnormal noise, and if the viscosity of the oil is too high, the engine load will become larger, and the noise generated by the mainland will also be generated. So be sure to use the oil label on your car's manual.