Identify duty-free items via HS code

Engine interior cleaning - an effective way to improve car performance With the continuous development of the automobile industry,Identify duty-free items via HS code more and more car owners are beginning to pay attention to the performance of cars. The performance of a car is not only related to its own service life, but also determines the effect and driving safety of the car. As the heart of the car, the engine has a crucial impact on the performance of the vehicle. For engine maintenance, internal cleaning of the engine is a very necessary part, which can effectively improve the operation effect of the engine, thus improving the performance of the car.I. The role of engine internal cleaning. Engine internal cleaning plays an important role in improving the performance of the car. First of all, cleaning the inside of the engine can effectively remove carbon, scale and other impurities in the engine, thus improving the efficiency of normal operation of the engine. Due to long-term use, it is inevitable that various impurities will be produced inside the engine, such as dust in the air, oil, etc., which leads to the blockage of the small pipes inside the engine, which in turn weakens the performance of the engine. Cleaning the inside of the engine can remove these impurities, so that the oil line inside the engine is smooth and the gas line is smooth, so as to improve the intake efficiency of the engine and strengthen the power output. Secondly, internal cleaning of the engine can also effectively extend the life of the engine. As mentioned above, the impurities inside the engine are one of the main culprits of engine damage.With the accumulation of impurities, various parts inside the engine face a greater risk of damage due to friction, wear and other reasons. Cleaning the inside of the engine can effectively remove these impurities, so that the parts of the engine reduce wear during use, so as to delay the aging of the engine. At the same time, internal cleaning of the engine can also ensure the stability and reliability of the engine during operation, so that the car can maintain stable power performance and reduce the risk of damage. In a word, internal cleaning of the engine can effectively improve the performance of the car, extend the service life of the engine, and maintain the stability and reliability of the car, which is an effective car maintenance measure. II. Common engine internal cleaning methods. At present, there are many engine internal cleaning methods on the market. The following are the more common ones: 1. Oil washing machineThe oil flushing method refers to the thorough cleaning of the internal dirt by injecting a certain amount of engine interior cleaner into the oil, and then starting the vehicle to run for several minutes. This method has the advantages of low cost, thorough cleaning, and one-time treatment of all impurities, but its disadvantage is that it needs to be operated by professionals, otherwise it may have an adverse impact on the car engine. Two. Fuel injection method Fuel injection method refers to cleaning the dirt of the conduction pipeline, cylinder block and other internal components through the detergent after injecting the detergent into the car's fuel tank and driving to a certain mileage. This method has the advantages of simple operation, no need for professional skills, and relatively easy to thoroughly clean the internal impurities of the car, but it takes a long time, and the effect will only be obvious after a period of mileage. 3. Solid pole method Solid pole method isIt refers to the inhalation and discharge of engine cleaner after starting the engine by inserting a special solid rod into the engine intake. This method has the advantages of hygiene, safety, cleanliness, simplicity, etc., but it will have different applications for different types of modern high-tech engines. III. Precautions for engine internal cleaning Although engine internal cleaning can effectively improve the performance of the car, there are also some things to pay attention to during operation to avoid unnecessary accidents. 1. It is necessary to choose a regular engine interior cleaner, and it is better to use the products designated by the manufacturer. Two. Before cleaning, you should check whether there is an obvious problem inside the engine, and then clean it under the condition that the engine is not faulty. 3. When cleaning the interior, it is necessary to ensure that the cleaner can fully wet all parts of the engine to avoid loopholes.Four. Do not wash excessively, otherwise it may cause adverse effects on the engine. 5. After cleaning, the oil should be changed regularly to ensure the normal operation of the engine. In a word, internal cleaning of the engine is an important measure to maintain the performance of the car and extend its service life. When using, it is necessary to pay attention to regularity and safety, and follow the instructions for use to achieve the expected maintenance effect.

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