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Oil needs to be changed regularly

2024-02-28

1、 Introduction
Oil, as the internal "blood" of the engine, plays a crucial role in ensuring the normal operation of the engine.
However, over time, the engine oil will gradually deteriorate, affecting its lubrication, cooling, and cleaning functions.
This article will explore in detail the principles, functions, discrimination methods, and main causes of engine oil deterioration, and propose corresponding treatment measures to help you better understand and handle the problem of engine oil deterioration.

2、 Principle of oil deterioration
The process of oil deterioration is a complex chemical and physical process. During the use of engine oil, it is affected by factors such as high temperature, high pressure, and oxidation, leading to the gradual failure of additives and changes in the molecular structure of the base oil. In addition, factors such as metal wear particles, moisture, and fuel dilution inside the engine can also accelerate the deterioration process of the engine oil.

3、 The function of engine oil
Oil plays multiple roles in the engine, including lubrication, cooling, cleaning, rust prevention, and sealing. The lubrication effect of engine oil can reduce friction between various components inside the engine and reduce wear; The cooling effect can help the engine dissipate heat and prevent overheating; The cleaning effect can remove carbon deposits and impurities from the interior of the engine, maintaining its cleanliness; The anti rust effect can prevent the internal metal components of the engine from rusting; The sealing effect can ensure the internal sealing of the engine and prevent oil and gas leakage.



4、 The discrimination method for engine oil deterioration
Appearance discrimination: Deteriorated engine oil usually appears black or dark brown, while fresh engine oil appears yellow or amber. In addition, spoiled engine oil may also contain impurities such as metal particles and carbon deposits.
Viscosity discrimination: The viscosity of engine oil will change with deterioration. The use of a viscometer can measure the viscosity of engine oil and compare it with the standard value to determine whether the engine oil has deteriorated.
Odor discrimination: Deteriorated engine oil usually has a burnt or sour odor, while fresh engine oil has a light oil smell.

5、 The main causes of engine oil deterioration
Oxidation: Under the action of high temperature and air, engine oil will undergo oxidation reaction, generating acidic substances and precipitates, leading to engine oil deterioration.
Water and fuel dilution: Water and fuel inside the engine can dilute the engine oil, reducing its performance.
Metal wear particles: The wear of metal components inside the engine will produce metal particles, which will mix with the engine oil and accelerate the deterioration process of the oil.

6、 How to deal with the problem of engine oil spoilage
Regular oil check: It is recommended that car owners check the color, viscosity, odor, and oil level of the oil after driving a certain mileage or time to ensure that the oil is in good working condition.
Regular oil change: According to the recommendations of the vehicle manufacturer, replace the oil and oil filter regularly. In general, the oil needs to be replaced after 220 days of use in the engine to ensure the performance of the oil and the normal operation of the engine.
Keep the engine clean: Regularly clean the inside of the engine, remove carbon deposits and impurities, and keep the engine clean.
Using high-quality engine oil: Choosing high-quality engine oil can provide better lubrication and protection, and extend the service life of the engine oil.

7、 Conclusion
Oil plays a crucial role in the engine, but oil deterioration is an inevitable process. Understanding the principle, function, identification method, and main causes of engine oil deterioration, as well as taking corresponding treatment measures, is of great significance for maintaining the normal operation of the engine and extending the service life of the vehicle. Car owners should regularly check the oil condition and replace the oil in a timely manner according to the actual situation to ensure the cleanliness and lubrication of the engine interior. Meanwhile, choosing high-quality engine oil is also one of the important measures to maintain engine health. Only by achieving these can we ensure the optimal performance of oil in the engine and provide stable and reliable power support for the vehicle.