What engine cleaning fluid does the 4S shop recommend to add every time you maintain your car? Is it useful or not? Should I add it?

Many car owners may have encountered such a thing. When maintaining their cars, engine cleaning agents are strongly recommended. Many car owners can't help asking: What is the function of engine cleaning agent? Is the engine cleaning agent useful? Let me tell you what the engine cleaning agent does.

Impurities in gasoline are the main components of carbon deposition, so the carbon deposition tendency of high cleanliness gasoline is weak. However, it should be noted that high label does not mean high quality, and label only represents octane number of oil, not quality and cleanliness.

In order to ensure the cleanliness of gasoline, some car owners will adopt the practice of adding gasoline detergent to gasoline. This can effectively prevent the formation of carbon layer on metal surface, and gradually activate the original carbon particles and slowly remove them, thus protecting the engine from damage.

The engine cleaning agent contains special decontamination components, which can effectively dissolve and clean the colloid, sludge and carbon deposit in the engine oil circulation system and discharge them with the old engine oil, thus improving the lubrication efficiency, inhibiting the generation of acidic substances in the engine, protecting the engine from corrosion, restoring the engine power, reducing oil consumption and engine wear, prolonging the service life of the engine and making the engine lubrication system smooth and quiet.

The addition of gasoline detergent must be cautious, if counterfeit and shoddy products are added, it will have the opposite effect; After the warm car is running, drain the old oil while it is hot, so as to drain the old oil cleanly; The engine should be avoided from being too old or lacking maintenance for a long time, otherwise it will cause oil blockage, decreased engine sealing and excessive noise.