Why does the car accelerate faster when the oil is changed? How many kilometers should the oil be changed?

Many car owners may know that the car's oil needs to be changed after it has run a certain mileage. Many car owners feel that the noise is less and the car runs faster after changing the oil. Why do they feel that the car is faster after changing the oil? In many cases, it may be that the car owners used the oil incorrectly before. Let's take a look!

Why does the car speed up faster after changing the oil?

Before replacement, you mistakenly use an oil grade that is not suitable for the current engine's recommended oil. For example, the recommended oil is 30, but 40 is used. As for the meaning of this grade, I will not explain it here. The higher the viscosity, the greater the natural resistance and the smaller the force. After use, replace it with a thinner oil. This is simply a qualitative leap. The power bursts out instantly, so the car accelerates faster.

How many kilometers can the engine oil be changed?

The oil change cycle is no more than 5,000 or 10,000 kilometers, depending on the engine and the oil used. Generally, mineral and semi-synthetic oils are replaced every 5,000 kilometers, and fully synthetic oils can be replaced after 10,000 kilometers.

If there is no problem with the quality and model of the engine oil, the lubricating effect of the engine oil will decrease within a replacement cycle, but the overall change is not large and can meet the engine lubrication requirements. If you can obviously feel an increase in power after the replacement, the reason is basically the quality and model of the engine oil.

What is the role of car oil

Engine oil is also a medium, a product of synthesis, and it will also decay and deteriorate. In addition, the friction caused by mechanical movement will produce a lot of debris, and the carbon deposits caused by incomplete combustion of gasoline will pollute the original clean engine oil. Therefore, the engine oil deteriorates and slowly solidifies, bringing additional resistance to the engine. It affects the acceleration of the car. Replace the new engine oil and it will be brand new inside. The long-lost feeling is back.

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Specifically lubrication, sealing, cooling, and cleaning. The engine is known as the heart of the car, and the engine oil is known as the "blood" of the car. There are many metal friction pairs inside the engine that rub against each other. The relative movement speed of these moving friction parts is fast, the operating temperature is high (up to 400-600 degrees), the working environment is harsh, and the oil viscosity, fluidity and other properties will change.