How to calculate landed costs accurately

The How to calculate landed costs accuratelyimportance of engine refrigerant must be taken seriously! The engine of a car, like a human body, needs to maintain a normal body temperature to operate normally. When the temperature is below freezing, engine antifreeze (also known as freeze) is very necessary. Engine antifreeze can protect the engine from freezing and crack, and also prevent the engine from overheating or corrosion, so as to maintain the good working condition of the engine. So, what is engine antifreeze? Engine antifreeze is a special liquid, which is mainly composed of water, antifreeze and corrosion inhibitors.The main component of antifreeze is ethylene glycol or propylene glycol, and its function is to reduce the freezing point of the liquid to prevent freezing. Corrosion inhibitors are mainly added to engine antifreeze, which is to prevent corrosion in the liquid and damage to metal parts. There are also some things that must be noted in engine antifreeze. First of all, the concentration of engine antifreeze is very important. Generally speaking, the concentration of engine antifreeze should be between 30% and 50%. If the concentration is too high, it will cause the viscosity of the antifreeze to increase, thus affecting the fluidity of the liquid and even causing the problem of engine overheating. If the concentration is too low, the antifreeze cannot protect the engine normally. In addition, the engine antifreeze also needs to be replaced regularly. Because the engine antifreeze will evaporate, leak, etc., the liquid needs to be checked and replaced regularly.So, what is the function of engine antifreeze? In fact, the function of engine antifreeze is multifaceted. First of all, prevent freezing. When the temperature is below freezing point, if antifreeze is not added, the liquid will freeze, causing the waterway in the cooling system to be frozen, resulting in damage to the engine gasket, cylinder wall and other parts, which in turn leads to engine failure or even scrapping. Secondly, prevent overheating. Engine antifreeze can play a cooling role at high temperatures and maintain the normal working temperature of the engine. Finally, prevent corrosion. Because the engine antifreeze comes into contact with the metal parts inside the engine, it can also protect the metal parts inside the engine to avoid corrosion. In addition to protecting the engine, engine antifreeze can also help drivers improve the safety of the car. For example, when driving in cold weather, we need to ensure driving safety by lengthening the braking distance and reducing the driving speed.And if the engine temperature is too low, the air conditioner and warm air will also reduce the efficiency, which will affect the driver's vision. With the protection of engine antifreeze, the vehicle can also start and run faster, and the acceleration effect is more stable. In daily driving, we need to check the status of the engine antifreeze at any time to determine whether the concentration of the engine antifreeze is sufficient to give full play to the protective role of the liquid. The cycle of replacing the engine antifreeze can be determined according to the use of the vehicle and the local climate characteristics. In a word, engine antifreeze is an important liquid to protect the engine and improve driving safety. There is no doubt that every driver should take the use and maintenance of engine antifreeze seriously, and regularly check and replace the engine antifreeze to ensure that the car is always in good working condition and driving safely.

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