The oil has just been changed, and the oil indicator has been on, what is the situation?

There are some conditions that can cause the warning light to come on, such as the old oil not being drained and not compatible with the new oil. If the residue and impurities left by the old engine oil are not cleaned, the filter will be blocked after the new oil is replaced, causing the red light to turn on.

Mostly due to the oil quantity does not meet the standard after changing the oil, you need to re-check whether the oil level height is between the maximum and minimum value of the oil dipstick after a few minutes of hot car, and the need to divide more and make up less if it is not in the range to ensure that the oil volume will be extinguished automatically after completion. Engine oil is the "protective agent" of the engine, that is, the engine lubricating oil, in addition to lubricating and reducing the wear of various parts of the engine, it also plays the role of cooling and cooling, and at the same time, due to the viscous characteristics of the engine oil, it also plays a role in sealing and leakage prevention for the engine. The quality of the oil depends on the viscosity of the oil, often said in the oil model, such as 0w-20 is on behalf of the viscosity value of the oil, w is winter, the meaning of winter, the value in front of w represents the fluidity of the oil in a low temperature state, the lower the standard value, the lower the temperature, the oil has enough fluidity to ensure the engine starting effect, and the value after w represents the oil in a high temperature state.

First of all, check whether the oil dipstick is short of oil, if there is a lack of oil, you should check whether the oil pan oil drain screw is loose, check whether the oil filter is leaking, if it is caused by the screws are not tight, you can go to the maintenance shop to replace the oil for claims.

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The oil light is mainly caused by insufficient oil pressure in the lubrication system, usually due to the following reasons:

The oil pan is not full of oil and check for oil leaks due to poor sealing.

The oil viscosity becomes thinner due to dilution of fuel or excessive engine load and high operating temperatures.

The oil passage is clogged or the oil is too dirty, resulting in poor oil supply to the lubrication system.

The oil pump or oil pressure limiting valve or bypass valve is stuck and working poorly.

The fitting clearance of lubricating parts is too large, such as the crankshaft main bearing journal and bearing, the connecting rod journal and bearing bearing are seriously worn, or the bearing alloy is peeling, resulting in excessive clearance, increasing the oil leakage and reducing the oil pressure of the main oil channel.

The oil pressure sensor is not working well.

There is no correct choice of oil viscosity based on the climate and engine conditions.

The use of oil with too low viscosity increases the oil leakage of lubricated parts, causing the main oil passage pressure to become low. The selection of oil with too high viscosity (especially in winter) will cause difficulty in pumping oil from the oil pump or difficulty in passing through the oil filter, resulting in low oil pressure in the system.

The oil pressure alarm light is on for three reasons:1. The oil pressure is really low; The specific reasons are analyzed below.

2. The oil pressure sensor or switch is broken;

3. The alarm lamp circuit is short-circuited, so that the alarm lamp cannot be extinguished.

Key Benefits:

I changed the oil, and the oil light was still on, probably because: 1If the oil is too thick, it is recommended to change the oil to a lighter one.

2.Oil induction plug false alarm, replace oil induction plug 3Blocked oil passages lead to slow oil application.

The YACCO oil master still recommends going to the repair shop to check the repair.

Possible causes:

insufficient oil supply;

If the engine temperature is too high, the oil becomes thinner and the oil pressure becomes low;

Bearing or other parts wear out of limit, leakage;

The oil filter and suction plate are blocked;

Failure of the relief valve;

Improper selection of engine oil, wrong grade, low viscosity, and drop of oil pressure;

Oil pipe leakage and blockage; ......

The above analysis is for reference.

Summary. After replacing the oil, the oil lamp on the instrument is on, if the oil lamp is still on after the engine starts, there is a problem, you need to check the amount of oil, see if it is normal, and you need to check the oil pressure to see if there is a problem, and you need to check whether the oil pressure signal detected by the oil pressure sensor is normal, these aspects need to be specifically checked. If the oil light is on when the key is turned on, it will disappear after the engine starts, which is a normal phenomenon.

I changed the oil, why is the oil light still on?

Hello, I am helping you sort out the answer to the question, please wait a while Hello, I am helping you sort out the answer to the question, please wait a while After changing the oil, the oil lamp on the instrument is on, if the oil lamp is still on after the engine starts, there is a problem, you need to check the oil volume, see if it is normal, and you need to check the oil pressure to see if there is a problem, and you need to check whether the oil pressure signal detected by the oil pressure sensor is normal, These aspects need to be checked specifically. If the oil light is on when the key is turned on, it will disappear after the engine starts, which is a normal phenomenon.

Hello dear! , Thank you for waiting, just change the oil for the oil lamp to turn on 1, it may be that the oil sensor has been damaged. The oil sensor is to identify the temperature and pressure of the oil, if the owner accidentally breaks the oil sensor when changing the oil, then there will be a fault light on, you need to go to the auto repair shop to check and replace the sensor.

2. It may be that the quality of the purchased engine oil is not good. If the viscosity of the oil is relatively low, or the lubrication of the oil is relatively poor, the car's induction system will identify it, and a bad oil cannot make the car operate normally, so the car's fault light will light up to issue a fault warning. 3. It may be that you don't pay attention to the surrounding debris when changing the oil, and some debris falls into it and causes blockage.

If there is debris falling into it and blocking the oil delivery port, then it will also cause the fault light to light up, in this case it is difficult to deal with it by yourself, and it needs to be replaced and cleaned by professional personnel to solve the problem.

What is the reason why the oil indicator light is on after changing the oil, most of the reason is that the oil quantity is not up to standard after the oil change, and it needs to be preheated for a few minutes before checking whether the oil level is between the maximum and minimum value of the dipstick. If it is not within the range, it is necessary to make up more and less to ensure the amount of oil, and the warning light will automatically go out after completion. It is the "protectant" of engine oil, that is, engine lubricant.

In addition to lubricating and reducing wear on engine parts, it also acts as cooling and cooling. At the same time, due to the viscosity of the oil, it also plays a role in sealing and preventing engine leakage. The quality of the oil depends on the viscosity of the oil.

It is often said that in the model number of oil, such as 0w-20, it indicates the viscosity of the oil, w represents winter, and the value in front of w represents the fluidity of the oil at low temperatures. The lower the standard value, the lower the temperature, the oil has enough fluidity to ensure the engine starting effect, and the value after w represents the stability of the oil at high temperatures, the larger the standard value, the higher the stability. Of course, this doesn't mean that the difference between the two values is as big as possible.

The type of engine oil should be selected according to the overall climatic conditions of the vehicle environment, so that the oil can play its best role and ensure fuel economy. @2019

The reason why the oil lamp is on:

1. The oil volume of the engine oil is insufficient, so that the oil volume of the oil pump is reduced or the pump cannot be pumped due to air intake, resulting in the oil pressure dropping, which leads to the problem of the oil lamp being lit.

2. If the engine temperature is too high, it is easy to thin the oil, and a large amount of oil pressure will drop due to a large loss from the mating gap, which will lead to the problem of the oil lamp being lit.

3. When the oil pump parts are damaged or the gap is too large due to wear and assembly, it will cause the failure of the oil pump not producing oil or insufficient oil output, which will cause the problem of oil lamp on.

4. The matching gap between the crankshaft and the large and small tiles is improper, too tight will increase the oil pressure, and too loose will reduce the oil pressure; Clogged oil filters and suction discs can also reduce oil pressure.

5. Damage or failure of the oil return valve: when the spring fatigue of the oil return valve of the main oil channel is softened or adjusted improperly, and the mating surface of the valve seat and the steel ball is worn or stuck by dirt and closed tightly, the oil return volume will increase significantly, and the oil pressure of the main oil channel will also decrease.

6. Improper selection of engine oil: when the wrong or improper brand selection is used, the leakage will be increased due to the low viscosity of the engine oil when the engine is running, so that the oil pressure will be reduced; There is oil leakage and blockage in the oil pipeline.

1. The amount of oil is insufficient. If there is a phenomenon of "burning oil", or normal oil loss, the oil volume of the oil Li Shen pump will be reduced accordingly due to the small amount of oil, and finally the oil pressure will drop and the oil lamp will be alarmed;

2. The engine temperature is too high. Although the amount of oil is sufficient, the temperature is too high to thin the oil, and the oil pressure drops due to the loss of the mating clearance.

3. The oil pump is damaged. When the parts of the oil pump are worn out or the gap between the assembly and the work is abnormal, the oil pump will not produce oil or the oil output will make the oil lamp alarm;

4. Improper selection of engine oil. If the owner chooses a low grade or a viscosity that does not match the original engine potato oil, it will also cause oil leakage, resulting in insufficient oil pressure and alarm;

5. The fitting gap between the crankshaft size and tile is improper. If the owner of the engine has been overhauled, you should pay attention to whether the engine has a problem in the assembly, too tight assembly will cause the oil pressure to rise, too loose will lead to a decrease in pressure.

For the failure of the oil lamp, it must be repaired in time, and continuing to drive before the cause is found out will cause the engine to pull the cylinder, crankshaft wear and bite and other failures, and then the engine must be overhauled.