Oil Indicator Light Still On After Oil Change – Cause and Solution

The light on the oil indicator light is a common situation encountered after changing the car oil, indicating that the car is having problems that need repair. There are many reasons why the oil indicator light comes on. So what exactly are those reasons?

Let's Thanh Phong Auto research Why does the oil indicator light come on after changing the oil and how to fix it? to answer the questions above.

Causes of Oil Indicator Lights On After Oil Change Thay

Weak oil pressure: Oil is often used to lubricate, reduce friction on engines. The condition that the oil indicator light comes on after changing the oil can be caused by not using the right type of oil, leading to low pressure. 

In addition to having to change the oil regularly, it is necessary to choose an oil with a viscosity index suitable for the weather temperature. Avoid causing lack of oil, peeling, engine noise.

Oil level is incorrect: An easy cause for the oil indicator light to come on is because the amount of oil is above or below the standard level. The amount of oil added must be just enough to meet the FULL line. If it is below the F level, you need to add more oil, if it is above the F line, you need to drain the oil to keep the engine running smoothly. 

Dirty lubricating oil: Dirty lubricating oil causes the oil indicator light to come on after an oil change. Due to the lack of periodic oil changes and engine maintenance, the viscous fluid will be degraded to form sludge, along with dirt on the machinery walls. Reducing the quality of the lubricant, the sensor device will signal the dirty lubricant through the indicator light. Therefore, it is necessary to change the oil and clean the engine equipment regularly to avoid dirty lubricating oil causing the oil indicator light to come on.

No oil added in the oil filter: In addition to changing the oil and removing dirt in the engine, it is necessary to add oil to the oil filter. Forgetting to add more oil in the oil filter will cause the pressure to drop when refueling, causing the indicator light to glow and if left for a long time, it will affect the engine details. Therefore, when changing the oil, it is necessary to check and change oil filter for car.

Damaged pressure sensor: The quality and condition of the oil is measured by the pressure sensor. The pressure sensor will send a signal through the pressure indicator light for users to capture information and check and handle it in a timely manner. Please monitor the sensor resistance regularly, to promptly detect abnormal signs causing damage.

After checking all the details, but still can't find the reason why the oil indicator light comes on. It is possible that the pressure sensor part has been damaged due to long-standing dirt and dust, and is often exposed to high temperatures.

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Notes When Changing Car Oil

+ Change the oil and clean the oil chamber regularly to ensure the machine's ability to operate. Because the process of using lubricating oil is very important to the operation of the vehicle. Therefore, when problems occur that cause the oil indicator light to come on, it is necessary to check and handle it in time before the car's condition gradually worsens.

+ Supply the right amount of oil to the standard line, not too little or too much. Check the oil level gauge on the vehicle or use a dipstick for vehicles that do not have a measuring device.

+ Regularly clean the engine and vehicle equipment.

+ Check pressure sensor equipment regularly. The engine should not be overloaded, causing high temperature, reducing the durability of the machine.

+ Use a lubricant with an index suitable for outdoor ambient temperature.

+ Take the car to the nearest showroom, to be checked and handled promptly if there is a problem.

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Above is ncause The oil indicator light stays on even after changing the oil and how to fix it mà Thanh Phong Auto bring, hope that the article provides more experiences for readers in the process of using and maintaining their car.