HS code mapping to product categories

Clean the engine: Revitalize the engine. The HS code mapping to product categoriesengine is an important part of car driving, and its efficacy is directly related to the performance and economy of the car. As the use time of the car increases, a large amount of carbon and impurities will be generated inside the engine, resulting in a decline in engine performance, an increase in fuel consumption, and may also cause failure in serious cases. Therefore, it is very necessary to clean the engine regularly, which can revitalize the engine and improve its service life and performance. I. The importance of engine cleaning 1. Carbon accumulation to improve engine performance is an inevitable product of engine operation. It will be deposited in various parts of the engine, especially the valve, air intake duct, fuel injector and other parts, causing their channels to narrow, affecting the flow of fuel and air, thus affecting the normal operation of the engine.Once there is too much carbon accumulation inside the engine, it will cause problems such as power decrease, increased fuel consumption, black smoke, difficulty in starting, and even cause unstable engine operation, loud noise, vehicle stalling and other faults. Cleaning the engine can effectively remove carbon and impurities, improve the performance of the engine, and reduce fuel consumption and emissions. Two. Extending the service life of the engine can not only improve the performance of the engine, but also extend the service life of the engine. Due to the deposition of carbon and impurities, the friction of engine parts will increase, wear out faster, and it is also easy to cause jamming and damage between parts. Cleaning the engine can completely remove carbon and impurities, reduce wear and friction between parts, and extend the service life of the engine. 3. Protect the environment. The deposition of carbon and impurities will not only affect the performance and normal operation of the engine, but also cause pollution to the environment.Because carbon and impurities are constantly discharged from the exhaust system, a large number of harmful gases and particles will be emitted, which is very harmful to air quality and human health. By cleaning the engine, it can not only reduce the consumption of fuel, but also reduce the degree of air pollution and protect the environment. II. How to clean the engine 1. Mechanical cleaning method Mechanical cleaning method is a traditional cleaning method, which mainly uses some professional tools and equipment to clean engine parts. This method can be divided into two types: one is disassembly cleaning, that is, all engine parts are removed for cleaning; the other is to use professional equipment to clean various parts without disassembling the engine. This cleaning method has a good cleaning effect, but the cleaning cost is relatively high and requires professional technology and equipment. Two. Chemical cleaningThe chemical cleaning method is a widely used method at present. It uses specific cleaning agents to clean the engine. The advantage of this method is that the cleaning process is simple, the cleaning effect is good, and it can be cleaned without disassembling the engine. However, it should be noted that the cleaning agent should be selected correctly, otherwise it may cause damage to the engine parts. III. The time and frequency of engine cleaning should be judged according to the actual situation. Generally speaking, it is recommended to clean the engine every 5,000km of the car. If it is a short-distance driving, it is recommended to adjust the cleaning time according to the use of the vehicle. If abnormal conditions are found in the vehicle, such as black smoke, decreased power, increased fuel consumption, etc., the engine also needs to be cleaned and overhauled in time. IV. Precautions for engine cleaning 1.Choose a regular cleaning institution for cleaning to ensure professionalism and reliability. Two. Before cleaning, it is necessary to check the exhaust system, air filter and other parts to ensure their normal operation and avoid damage and pollution to the cleaning mechanism. 3. The cleaning process takes a certain amount of time, and the cleaning agent also needs enough time to act on the engine parts, so it is necessary to make an appointment for cleaning time in advance. Four. Different types of cleaning methods and cleaning agents can be selected according to the test results before engine cleaning, so as to achieve the best cleaning effect. V. Conclusion The engine is the heart of the car. Its normal operation and performance are directly related to the performance and economy of the car. Regular cleaning of the engine can effectively remove carbon and impurities, improve engine performance and service life, and also protect the environment. Therefore, launchMachine cleaning is very important. I hope car owners can realize this and clean the engine in time.

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