How to interpret global trade indicators

Gasoline engine oil: easy to control your vehicle Cars are How to interpret global trade indicatorsan indispensable means of transportation in modern society, and its engine is the core component of the car. Engine oil is a necessary lubricant for the operation of the engine. For owners who use gasoline engines, choosing the right engine oil can extend the life of the engine, improve the performance of the vehicle, and save fuel costs. This article will introduce the relevant knowledge and importance of gasoline engine oil to you. 1. The function of gasoline engine oil. The engine is the core component of the car, and each part inside it needs the protection or cooling of lubricant. Engine oil is a lubricant, which can effectively protect the wear of the internal parts of the engine, prevent the heat generated by friction from damaging the engine, and improve the efficiency and life of the engine.At the same time, gasoline engine oil also has the following functions: (1) Cleaning and lubrication: When the engine is running inside, a large amount of dust and oil will be generated, which will be attached to the internal parts of the engine, resulting in a decline in engine performance. And engine oil can clean these impurities and oil stains and protect the parts of the engine from corrosion. ( 2) Reduce the friction coefficient: By forming a lubricating film between the parts of the engine, gasoline engine oil reduces the friction between the parts and reduces the wear of the parts, making the engine run more smoothly. ( 3) Maintain the engine temperature: The heat dissipation ability of the engine oil can keep the engine temperature within a normal working range, so as not to cause heat or overcooling. Two. How to choose the right gasoline engine oil for yourself and buy the right engine oil for your model is the key to ensuring the smooth operation of the engine.Generally, when choosing gasoline engine oil, the following factors need to be considered: (1) Engine models: Different engine models need different engine oil and cannot be used at will. ( 2) Occasions of use: Generally speaking, if the car often drives on the highway for a long time, it is recommended to use high-speed synthetic oil with low viscosity. On the contrary, if the car often drives on urban congested sections, it is recommended to choose high-temperature synthetic oil. ( 3) Quality level: The quality level of engine oil depends on the performance of the oil in laboratory tests, which is divided into API classification and ACEA classification. At the time of purchase, it is necessary to determine whether the grade of engine use meets the level required by gasoline engine oil. ( 4) Price: The better the quality of the engine oil, the higher the price, depending on your own model, road conditions, service life and other factors, and make a comprehensive consideration.3. Precautions for replacing gasoline engine oil. Replacing gasoline engine oil is also one of the operations that car owners need to pay attention to. The following factors need to be paid attention to when replacing: (1) Replacement time: Engine oil is a "consumable" and needs to be replaced regularly. The specific cycle depends on the use of engine oil. It is recommended to replace it every 5,000-10,000 kilometers. ( 2) Replacement timing: The best time to change the engine oil is when the engine is in a high temperature state, so that the engine oil can flow more smoothly. ( 3) Replacement volume: The replacement volume of gasoline engine oil is about 4-6L, according to the requirements of the car model or the owner's manual. ( 4) Dosage type selection: Generally, there are two options for a whole barrel of engine oil and a small bag. It is recommended to choose a whole barrel of engine oil and replace it with a professional auto repair factory.In general, the importance of gasoline engine oil in the daily use of automobiles cannot be ignored. Choosing the engine oil suitable for your model and regularly replacing the engine oil can not only extend the service life of the engine, but also improve the performance of the vehicle, reduce fuel expenditure, and ensure your driving safety.

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