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Engine antifreeze (Engine cold-resistant secret: How to choose antifreeze?HS code-driven export incentives) As the temperature drops, the maintenance of car engines becomes more important. In winter, antifreeze is especially important. This article will introduce you to the selection and use of engine antifreeze. What is engine antifreeze? Engine antifreeze is a liquid used in automobile engines, which is mainly used to prevent the engine from freezing at extremely low temperatures. It not only has the effect of preventing engine freezing, but also plays the role of anti-corrosion, anti-rust and lubrication. Antifreeze provides sufficient protection for the engine, making it more durable and reliable. How to choose engine antifreeze? When choosing engine antifreeze, the following factors should be considered: 1. Different climate conditions in the region require different antifreeze.Usually, the temperature in northern countries such as Canada and Russia is lower, and it is necessary to choose an antifreeze that can be used at temperatures of -40 degrees Celsius or lower. In warmer areas in the south, you generally only need to choose an antifreeze that can be used below 0 degrees Celsius. Two. Different types of vehicles require different antifreeze. Passenger cars and light trucks usually use inorganic acid antifreeze, while large trucks and other heavy motor vehicles usually use organic acid antifreeze. 3. The formula of antifreeze can be divided into inorganic acid antifreeze and organic acid antifreeze according to the formula of antifreeze. The main component of inorganic acid antifreeze is ethylene glycol, while organic acid antifreeze is made of lactic acid, oxalic acid or nitric acid. The service life and durability of inorganic acid antifreeze are relatively strong, but the pollution to the environment is also greater. Organic acid antifreeze has little impact on the environment, but its service life is relatively short.Four. Warning signs When buying antifreeze, you should not only pay attention to the formula and applicable models of the antifreeze, but also look at the warning signs on the antifreeze package to determine whether they are harmful to the human body and the environment. How to use engine antifreeze? When using engine antifreeze, the following steps should be followed: 1. Check the water tank and cooling system. Before replacing the antifreeze, the water tank and cooling system must be thoroughly checked for any leakage or other problems. Two. Discharge the old antifreeze and discharge the old antifreeze from the cooling system. This can be done by opening the valve at the bottom of the water tank or removing a water pipe in the cooling system. 3. Use drinking water to rinse the cooling system thoroughly with drinking water to remove any residue left by the old antifreeze. Four. Pour in the new antifreeze. Before pouring in the new antifreeze, you must read the instructions for use of the new antifreeze carefully.Determine whether the new antifreeze needs to be diluted with water. Then, slowly pour in the new antifreeze until the cooling system is full. 5. Check the amount of engine antifreeze. After replacing the antifreeze, you also need to check whether the amount of engine antifreeze is correct. If the antifreeze level is found to be too low, an appropriate amount of antifreeze needs to be added. In summary, the selection and use of antifreeze are very important when maintaining vehicles in winter. The correct antifreeze can provide sufficient protection for your car engine, making it more reliable and durable. Therefore, it is recommended that car owners have a detailed understanding of the selection and use of engine antifreeze before use to ensure that the car engine is best protected.

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