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Hello, generally the engine sound will not become louder after changing the oil, if the engine sound becomes louder after the oil is changed, it may be that the viscosity of the engine oil is large or the first oil of the machine god is added to the draft.
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It's good to run, the first step to change the oil is to vent, the filter is also replaced with a new base roller, and the entire lubrication system must reach a new balance. Besides, if it's really loud or a little different from before, I'm afraid you can't tell. Don't be so careful, use the car as an eyeball, and in another two years, it is estimated that you will not even bother to look at it, and you will want to change it to a new one.
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It's not that the oil is bad, it's that the oil that has just been changed has not been fully lubricated to the various oil channels, and it will be fine after running for a while.
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It has a certain impact. If the viscosity of the oil is too small, there will be a loud sound. Nowadays, people think that fully synthetic motor oil is better, but almost no one will tell you that fully synthetic motor oil is thinner than mineral oil. Therefore, the engine oil should be changed according to the label on the manual.
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Oil viscosity has a certain effect on engine sound, but a higher oil viscosity grade can meet the standards required in your instructions. But the sound may change a bit.
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There is a certain impact. If you change the viscosity of the oil too small, you can't have a bigger say. People now think of fully synthetic motor oils, but almost no one will tell you that a fully synthetic motor oil is more diluted than mineral oil. So change the oil, according to the instructions on the label.
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My car is also 3000 kilometers to the first insurance, changed the engine oil sound became louder, said that it was the oil produced by Sinopec, and I didn't see what oil they changed, but also to say that the same oil as the original factory, Buick 4S is a big **, I said to change the oil to give money, they said"Yes, you don't need the oil you take away", I said it's not okay to discount some money, he said no, can't I take back the bad engine oil to drink? What kind of service is this, the whole thing is unreasonable.
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Normal! My old watch's car is like this after the first insurance, just run!
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1. Are you supervising the replacement of repairmen on site? I heard the 4S repairman himself say that he didn't change the oil.
2. Does the engine oil used in the original vehicle meet the requirements? The more expensive the oil, the better, and the mineral oil with a thinner fully synthetic oil will hurt the car in winter.
It is not excluded that the engine oil of S is not purchased from the manufacturer, but it is generally not used to purchase fake and shoddy oil outside.
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There is an impact, the 4S shop is not necessarily good, you see what level of oil you change. What kind of car is yours?
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The quality of the engine oil has a big impact.
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There is an impact, but not a big problem.
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There are many kinds of situations, one is that the engine sound in winter is louder than in summer, and depending on the label you buy oil, if the label is low, then the engine sound is certain. Second, depending on the grade of your oil, whether it is a fully synthetic, semi-synthetic, or mineral oil, etc. Of course, the better the oil, the less noisy.
Third, if you buy fake engine oil, then your gear run-in is not good, and the problems in winter are not only the loud engine sound, but also the engine stalling, detonation, and oil burning may occur. It is recommended to go to 4S to do a test to see if there are other problems. Then verify the engine oil you bought, ** the oil anti-counterfeiting is still better.
Check out our post on how to distinguish between genuine and fake motor oils.
If it's all right, then run again. It may be a problem with the grade and grade of the purchased oil.
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Hello! First of all.
I can get through. Anti-counterfeiting labels.
Can't prove 100%.
And then there's the owner of the car where you are.
Northern car owners. Or in the south.
The kind of hot weather.
Regions will change.
10W or 5W.
Engine oil ยท This kind of engine oil.
Less viscous!
engine. The voice sounds.
It's going to be bigger!!
Because it's cold.
Use an oil that is too viscous.
It starts in a cold car.
It's time to have damage to the engine!!
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The 8 most common causes of engine shake and noise are easy to understand.
1. Failure to change the oil on time The viscosity of the oil is too high.
As we all know, the engine is not allowed to have too high oil viscosity in the cold start or low temperature working state; When the engine is fully warmed up to the normal operating temperature, the oil viscosity is not allowed to be too low. If one of these two situations occurs, it may cause a series of problems such as engine noise and insufficient power, and the reasons for these two problems are as follows.
1. Failure to change the engine oil on schedule: ordinary mineral engine oil needs to be replaced at 5,000 kilometers, and a better fully synthetic engine oil must be replaced at 10,000 kilometers.
2. The oil label is not right: the oil label is the same as the original engine oil, remember not to add different grades of oil casually, because different oil labels represent different oil viscosity, your engine is not suitable for this oil viscosity, too thin or too thick will cause the engine noise to become louder.
2. There is carbon deposit in the cylinder.
Because the old engine oil becomes thinner and thinner the more you use, there is more and more carbon deposit. The oil is thin and easy to channel the oil, resulting in more and more carbon deposits and a lot of power loss. When the oil is changed, the engine does not adapt to the viscosity of the oil, which can increase the revs, which in turn causes the engine to be noisy.
3. Valve leakage.
The main reason is that when the valve seat is hinged, due to improper operation or excessive wear of the inner hole of the valve guide, the valve seat is inclined or the valve gap is small, resulting in valve ablation and the valve is not tightly closed and the air leakage sounds. Remove the cylinder head, grind the valves, check the valve tension spring, and adjust the valve clearance from the beginning.
5. Engine compartment sound insulation problem.
If you listen to the engine working normally from outside, and feel that the noise is too loud when you sit in the car, it means that your vehicle is poorly insulated. The vehicle's seals should be inspected to see if there is any signs of aging. Or increase the sealing effect of the vehicle and try how noisy it is.
6. a shock absorber.
We all know the role of shock absorbers, generally when we cross the speed bump, we can feel whether the shock absorber on the car is good, when there is a problem with the shock absorber on the car, there will be a problem of engine noise.
7. Deflagration and detonation in the cylinder.
When there is detonation, that is, after the spark plug jumps, the phenomenon of spontaneous combustion occurs at the end of the combustible mixture, at this time, the flame center formed by the spark plug ignition mixture and the new flame center formed by the spontaneous combustion of the end mixture are in the opposite direction, and propagate at the speed of impact, resulting in a sharp knocking sound and increasing the engine noise.
8. Lack of coolant.
Everyone knows the role of coolant, when it is too low, it is likely to cause problems, and the engine noise will also become louder, which should be checked and replaced to avoid other problems.
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After the car changes the oil, the noise becomes louder, and the fuel consumption will increase, which is a common phenomenon, I believe many friends have encountered, the oil is the blood of the car, we must figure out what type of oil they need to add before changing the oil, if the unsuitable oil is added, the engine noise may become louder, for example, the car used to add 0w-30 oil, but you will be the 5w-40 oil, so there will be problems, especially for new cars, and it is winter.
The second point is that the oil is added, because the oil is added too much, the liquid level is too high, a large part of the crankshaft is soaked in the oil, and when the crankshaft rotates to work, the resistance will become larger, so that the fuel consumption will increase, affect the power, and the engine noise will also become larger. After changing the oil, the fuel consumption increases, and the engine noise becomes louder, which is generally caused by these two situations, so before we change the oil, we must figure out what type of oil we add to our car, which is very important, if you don't know, take a look at your own maintenance manual.
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1. Add too much engine oil. Although the engine needs oil to lubricate during operation, it is not that the more oil, the better, if there is too much oil, it will increase the resistance to the engine, resulting in the impact of power output, and then carbon deposits; At the same time, the amount of oil entering the combustion chamber increases, and the air-fuel ratio changes, and the noise generated during combustion increases.
2. The viscosity of the engine oil does not match. In fact, engine oil is also divided into different qualities and different grades, their characteristics are also completely different, if the viscosity of the selected gasoline is relatively large, then when the temperature is low, starting the engine will produce some noise, it can be seen that choosing the right engine oil is very important.
3. Inferior oil may be added. When choosing engine oil, it is best to go to a regular store to buy, so that the quality of the oil bought is guaranteed, if you use inferior gasoline, its lubrication effect is worse, it will have an impact on the engine, and noise is inevitable.
4. Do not mix engine oil. If you use a brand of gasoline for a long time, do not change the brand at will, after the two gasoline are mixed and added, the engine can not adapt to it for a while, and it is easy to produce some noise.
5. Carbon deposition. The engine oil will gradually become thinner in the process of use, and it is easy to produce some carbon deposits, and after the engine is replaced with new gasoline, it cannot fully adapt, and the speed will increase during operation; If the car is kept revving high for a long time, then there will definitely be some noise, and the new oil will need a process of adaptation, and it will gradually disappear after a while.
In addition, the problem of carbon deposition in the engine cannot be ignored, which will reduce the lubrication of parts, cause wear and tear of the engine, and in the long run, reduce the service life of the car.
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There are several reasons why I feel that the engine noise becomes louder after changing the oil:
1. The engine oil does not meet the standard, the viscosity of the new engine oil is high, the mechanical resistance is large, and the pressure in the cylinder is increased.
2. The amount of oil added exceeds the specified line.
3. At the end of the run-in period of the car, the engine sound will be improved and the fuel consumption will decrease.
4. Moderate carbon deposition.
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Hello, it may be an oil problem, and it is not necessarily the cause of this. After changing the engine oil for maintenance, the noise of the engine becomes louder, and this phenomenon cannot be generalized. If it is inferior engine oil, it is normal for the noise to become louder, if it is after changing the high-quality engine oil, there is still the problem of engine noise becoming louder, it is recommended that you go to the 4S shop to check or the big repair shop to check, thank you, hope!
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Why does the engine get louder and louder after the oil change in the car? It could be these reasons!
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This friend, after your car has changed the oil, the engine is louder, there may be these reasons, one is that the oil model is not right, the viscosity is too thin or too thick will not be able to hit the oil pressure, so that the oil lubrication can not be achieved, it will make the engine louder. The second is that the oil pump does not work well and cannot make the oil circulate normally. Third, the number of oil changes is insufficient.
Fourth, the quality of the replaced engine oil.
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The engine oil has been changed, and the engine sound will be loud. Quite re-run-in, and after a while it will be fine. If it helps you, please set it to. Thank you!
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It is advisable to check whether the amount of oil added is sufficient, and it may be that the oil model selected is not very suitable.
It is recommended to choose the oil type recommended in the maintenance manual.
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There is a saying that "it is easy to buy a car and it is difficult to maintain a car", after buying a car, you will encounter all kinds of problems that need to spend money to maintain the vehicle, because there are many parts that make up the car, as long as there is a problem with one part, it will affect the operation of the car itself, and some people will go through it in order to make the vehicle less problematic.
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If you haven't changed the oil before, then drive it for a while, and if you still have, change the oil, for unreliable reasons.
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Either the viscosity of the oil you are changing is not enough, or there is something really wrong with your engine.
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Hello, it should be caused by the wrong oil number, and it will not affect the engine too much.
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Why does the engine noise become louder after the oil change in the car? It doesn't have to be fake oil.
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A lot of people have this feeling, and after a few days, it will generally become normal.
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After the car changes the oil, the engine becomes louder?
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If you're just starting out, try it again after using it for a cycle.
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The viscosity of the new engine oil is relatively large and thin, and the greater the viscosity, the greater the fuel consumption! The thinner the oil, the louder it is! The thinner the oil, the easier it is to get on the cylinder, the better the permeability, the less the wear, because the oil is thin, the cushioning effect is small, so the sound will be a little louder!
The viscosity of the engine oil is large, the friction coefficient is large, and the engine power loss is large, which will cause the early fuel consumption to increase slightly after maintenance!
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Pay attention to the three major elements of oil change, and there are some detailed precautions, which are detailed as follows:
1. When should I change the oil?
If you care a lot about the vehicle in front of you and don't plan to replace it within ten years, it is recommended to replace it with 5,000 kilometers of ordinary oil and about 5,000-7,000 kilometers of synthetic engine oil. Don't think it's a waste to change early, and then compare similar cars after 5 years, whether in terms of power, fuel consumption or maintenance costs, you can see a huge difference. If you are good for the car, the car will be good for you!
Second, how to choose engine oil.
In general, the following four elements should be paid attention to when choosing engine oil:
1. The selection of engine oil should be selected according to the requirements of the engine, and it is not necessary to use too high-grade engine oil on the engine with lower requirements, nor can the lower-grade engine oil be used on the engine with higher requirements.
2. Multi-grade oil should be selected as much as possible, and multi-grade oil has a good protective effect on the engine due to its saving, long life and high efficiency. Based on the characteristics of multi-grade oil, premature blackening and oil pressure may be smaller than that of ordinary oil during use, which is normal.
3. The quality of some domestic engine oil is also good, and it can be used with confidence, and there is no need to blindly pursue "foreign oil".
4. If the engine is in good condition and the temperature is low in season, the oil with low viscosity should be used as much as possible to make the oil circuit smooth. For example, in the high temperature season or under the condition of severe engine wear, the selection of high viscosity oil is conducive to the formation of oil film and reduces engine wear.
3. When winter comes, the viscosity of the oil used in summer increases, the fluidity becomes poor, the friction resistance increases, the crankshaft rotation resistance increases, the piston and cylinder liner wear increases, and the diesel engine is difficult to start, which affects the power and fuel economy of construction machinery. Therefore, it is necessary to change the winter engine oil with good fluidity.
When changing the oil, try to use high-quality oil. This type of engine oil is not easy to oxidize at high temperatures, and will not form deposits in the delicate parts of the diesel engine, which can greatly extend the life of the diesel engine. On the contrary, if low-quality engine oil is used, it is easy to leave carbon deposits and sludge in the diesel engine, clog the filter and oil passage, and shorten the life of the diesel engine.
Single-grade engine oil has a narrow temperature range, and multi-grade engine oil can work in a wide temperature range, so it is advisable to use multi-grade engine oil in winter. In some severe cold regions, a special antifreeze oil should also be used. The oil filter should be changed at the same time as the oil change.
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