"My motor oil is so dark?"

"Why don't my motor oil black?"

"Whether the oil is dark or not black, you tell me!"

When changing the oil, I often like to see the oil and black，In fact, this is not a scientific identification method。Determined oil maintenance ability is the viscosity of the oil，Oil Oil Black Description strong cleaning ability。

Even if the oil is not black，It also needs to be replaced regularly。The main function of the oil is lubricating、Clean、cooling、Seal、anti -rust, etc.，Even if the oil does not turn black，These functions may also gradually weaken。If you continue to use，It may affect the performance and maintenance of the engine。

other，The replacement cycle of motor oil is still operating with the engine、Machining、Load and other factors related。If a large amount of impurities appear in the oil、Water、Additive failure, etc.，No matter whether the oil becomes black，All need to be replaced in time，To protect the normal operation of the engine。

So，Regular replacement oil is an important measure to ensure the normal operation of the engine，Don’t just use the oil to turn black to determine whether it needs to be replaced，Instead, replacement should be replaced according to the maintenance cycle and mileage。At the same time，When changing the oil, you need to choose the type and level of the oil that meets your own model，To ensure the normal operation of the engine and extend the service life of the engine。

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1. Normal oxidation: Oil will gradually oxidize during use，Especially high -performance motor oil，Oxidation speed faster。After oxidation of oil，It will become black，This is normal phenomenon。

2. Poor fuel quality: If the quality of fuel is not good，Contains more impurities and olefins、Sulfur and other ingredients，Will cause the formation of mud in the gasoline engine，Black the oil。

3. High temperature of the engine: when the engine is running，The temperature will gradually rise，Machine oil will also be heated oxidation，Lead the oil into black。

4. The lack of the crankshaft box is poorly ventilated: The lack of ventilation of the crankshaft box will cause a large amount of smoke and oil and gas to be discharged，accumulated in the crankshaft box，Mix with motor oil，Black the oil。

5. Effect of the air filter: the failure of the air filter will cause a large amount of dust to enter the crankshaft box，Mix with motor oil，Black the oil。

6. The old motor oil is not cleaned when replacing the oil: when replacing the oil，If the old engine oil is not cleaned，After joining the new oil，Old oil will pollute new oil，Lead the oil into black。

7. Metal crumbs friction: when the engine is running，Metal dandruff friction will make the oil black。

When the oil is changed，No replacement filter will cause，So it is best to change one

The above is a common factor for oil turning black，If the oil becomes black severe，It is recommended to replace new motor oil in time，and check and clean the engine。

Regular replacement of seabet loginmotor oil has many benefits for cars

First，Regular replacement of engine oil can keep the engine clean，Reduce the production of carbon deposits and mud，to reduce the wear and resistance of the engine。This helps improve fuel economy，Reduce maintenance costs。

Second，Replacement oil can update additives in the oil，to provide better lubrication and cleaning effect。This helps protect the engines of the engine，For example, cylinder、Pistons、crankshaft, etc.，Extend the service life of the engine。

third，Replacement oil can reduce engine noise and vibration。With the use of engine oil，Machine oil will gradually thicken，Lost its lubrication function。Regular replacement oil can update the oil，Provide better lubrication effect，to reduce engine noise and vibration。

Fourth，Replacement oil can excrete harmful exhaust gas and impurities。Machine oil will absorb and break down exhaust gas and impurities during use，If the oil is not replaced in time，These harmful substances will accumulate in the engine，Damage to the engine。

Last，Replacement of engine oil can improve the power and fuel economy of the engine。By maintaining the engine cleaning and providing a better lubrication effect，Replacement oil can improve the work efficiency of the engine，Improve the power and fuel economy of the engine。

To sum up，Regular replacement of seabet loginmotor oil has many benefits for cars，Can protect the engine，Improve the performance and life of the car。