HS code-based re-exports in free zones

Engine protection: ensure the safety of engine travel. The HS code-based re-exports in free zonesengine is the heart of a car, and the performance of the engine is very important to the overall performance of the vehicle. Therefore, protecting the engine is one of the necessary knowledge for car owners to travel. The engine bears huge power and load in the high-temperature and high-pressure working environment. If it is not maintained and protected, the life of the engine will be greatly shortened and even threaten driving safety. Therefore, it is very important to master the knowledge of engine protection to ensure the safety of the engine.I. Keep the engine clean. Cleaning the engine is one of the common ways to protect the engine. Dust, sand and soil, leaves, oil stains, dirt and other dirt accumulate on the surface of the engine from time to time. Failure to clean in time will lead to poor engine heat dissipation, reduce efficiency, increase wear, and shorten the life of the engine. There are many ways to clean the engine. You can use cleaning agents and cleaning tools to ensure that the engine parts are not damaged, or you can seek the help of professional mechanical maintenance personnel. II. Replacing engine oil and engine filter oil and engine filter play a very important role in engine maintenance. Oil not only plays the role of lubrication, noise reduction, cooling, cleaning and sealing, but also resists wear and corrosion between metals, and prevents the occurrence of grease accumulation, solidification and foaming. The machine filter can filter dust and impurities in the air, avoid entering the engine, and play a role in protection and cleaning.In view of the importance of oil and filter in the engine, we need to replace the oil and filter regularly to ensure the filtration degree and performance level of the oil and filter. III. Fill high-quality gasoline. When filling gasoline, don't underestimate the quality of the oil. Poor-quality oil products will contain impurities, which are easy to form precipitation, resulting in oil line blockage, engine performance degradation, and accelerated wear. If economic conditions permit, it is recommended to choose economical fuel or higher-grade imported gasoline. This can ensure the smooth operation of the engine and reduce emissions and environmental pollution. IV. Avoid vicious driving. Malignant driving refers to driving habits that cause damage to the common performance of the engine and the vehicle. Malignant driving includes overspeeding, high-speed dead (idling), long-term idling, hasty shifting, sudden braking, rapid acceleration, etc., which will increase the load of the vehicle's machinery, especially the engine, which is easy to lead to the early failure of mechanical parts.Therefore, it is necessary to avoid these bad driving habits, develop a good habit of driving in a civilized manner, and do a good job of maintenance according to the annual or mileage regulations of the vehicle. V. Regular inspection and maintenance in the process of normal use, because the internal operation is not easy to observe, regular inspection and maintenance is an important step to ensure the safety and long service life of the engine. Regularly check the working status of the engine, measure parameters such as engine pressure, oil pressure and temperature, and check the emission status, etc. At the same time, regular maintenance and regular replacement of liquids, such as coolant or brake fluid, ensure the coordination and reliability of the parts around the engine and reduce the failure rate. Engine protection is an important step to ensure car safety and extend its life. Through the above measures, we can effectively protect and maintain the engine, ensure the performance of the engine, reduce the loss and wear of engine parts, reduce the failure rate, and improve the reliability and safety of the car.Before traveling, keep the engine clean, fill up high-quality gasoline, avoid malicious driving during operation, and regularly test and repair. These are several aspects that we should pay attention to in vehicle maintenance.

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