Global HS code standardization efforts

With the continuous development of the automobile industry,Global HS code standardization efforts automobiles are no longer a traditional means of transportation, but represent a person's social status and taste. However, in order to maintain the performance and appearance of the car, the maintenance of the car is crucial. Among them, cleaning the engine is the key to maintaining the performance of the car. The engine is the core component of the car, and its state directly affects the performance of the car. As the usage time increases, a lot of dirt and particles will accumulate inside the engine, which will affect the cleanliness and normal operation of the engine. These dirt and particles are composed of sediments produced by pistons, cylinders, piston rings, valves and other components, as well as mixtures such as grease and dust in the intake system.If it is not cleaned up in time, these dirt will cause overheating of the engine, poor acceleration, increased fuel consumption and other problems, and even reduce the life of the engine. Therefore, cleaning the engine is very important to maintain the performance of the car. Engine cleaning can be divided into two types: surface cleaning and deep cleaning. Surface cleaning is mainly to clean the oil scale and dust on the surface of the engine. This cleaning method is relatively easy, and it only needs to use detergent and water to complete. However, because surface cleaning can only clean up the surface dirt of the engine, it cannot solve the problem of internal dirt and sediment. Deep cleaning can comprehensively clean the sediment inside the engine, thus effectively improving the performance of the car. There are many methods of deep cleaning, and the common ones include: carbohydrate cleaning, fuel cleaning and hydrolysis cleaning. Carbohydrate cleaning is a pure mechanical cleaning, which uses special equipment and cleaning liquid to clean the inside of the engine.During this process, the cleaning liquid will be sprayed inside the engine, and then the sediment inside the engine will be cleaned through mechanical movement. This method is very effective, but it requires certain equipment and professional knowledge. Fuel cleaning is another common cleaning method. It uses detergent to add to the fuel tank, and then cleans the inside of the engine through the normal operation of the car. This method is relatively easy to implement, but it requires a long time to run. In addition, this method may not be very effective for serious sedimentation of dirt. Hydrolytic cleaning is a relatively new engine cleaning method, which uses aqueous solution to clean the interior of the engine. This method is relatively safe and very effective. However, it should be noted that this cleaning method requires the use of some special equipment for cleaning, and also requires certain professional skills.No matter which cleaning method is used, the engine cleaning can greatly improve the performance of the car. The principle is that the sediment and dirt inside the engine can be removed through cleaning, so as to maintain the cleanliness and normal operation of the engine. This can reduce engine wear, improve the power and operating efficiency of the car, reduce fuel consumption and exhaust emissions, and extend the service life of the engine. In a word, engine cleaning is one of the important steps of car maintenance. By selecting the appropriate cleaning method and the appropriate cleaning cycle, the stability and reliability of automobile performance can be effectively maintained. Therefore, it is recommended that car owners must pay attention to the cleaning and maintenance of the engine when maintaining the car. This can not only guarantee the performance of the car, but also reflect the professional knowledge and maintenance attitude of a car lover.

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