How to Choose Lubricating Oil for Your Equipment

Engine oil, namely engine lubricating oil, English name: Engine oil. The density is about 0.91×10³ (kg/m³), which can lubricate the engine and reduce wear, assist cooling and cooling, seal and prevent leakage, prevent rust and corrosion, and shock and buffer the engine. Known as the "blood" of the equipment. Engine oil consists of base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil. Additives can make up and improve the deficiencies in the performance of base oil, endow some new properties, and are an important part of lubricating oil, which is th most important material for engine lubricating system. 

The engine is the heart of the equipment. There are many metal surfaces that rub against each other in the engine. These parts move fast and have poor environment. The working temperature can reach 400°C to 600°C. A new technology turns natural gas into a crystal-pure, fully synthetic base oil, to which unique Power Clean technology is added to create a lubricant with exceptional cleaning and protection properties. Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong the service life. The oil on the market can be divided into two types: mineral oil and synthetic oil due to different base oils (vegetable oil is not counted due to the scarcity of production). Synthetic oils are divided into: fully synthetic and semi-synthetic. Lubricating base oils are mainly divided into two categories: mineral base oils and synthetic base oils. Mineral base oils are widely used and used in large amounts (about 95% or more), but in some applications, products formulated with synthetic base oils must be used. In diesel engine, the oil pump will lift lubricating oil from oil pan, and then deliver the lubricating oil to every parts of diesel engine. 

The existing oil in the market is classified according to the SAE method, single-grade oil: 6 kinds of oil for winter, 4 kinds of oil for summer, multi-grade oil: 16 kinds of general oil for winter and summer.Winter oil grades are: 0W, 5W, 10W, 15W, 20W, 25W; summer oil grades are: 20, 30, 40, 50; winter and summer general oil grades are: 5W-20, 5W-30, 5W -40, 5W-50, 10W-20, 10W-30, 10W-40, 10W-50, 15W-20, 15W-30, 15W-40, 15W-50, 20W-20, 20W-30, 20W-40 , 20W-50.

SL/SJ: Indicates the use of gasoline engine equipment

CF/CG: Indicates the use of diesel engine equipment

The details are as follows: API is the English abbreviation of American Petroleum Institute, and API grade represents the grade of engine oil quality. It uses simple codes to describe the working ability of engine oil.API engine oils are divided into two categories: the series starting with "S" represents gasoline engine oil; the series starting with "C" represents diesel engine oil; when the two letters "S" and "C" exist at the same time, it means that the engine oil is gasoline and diesel Universal. The meaning of the letter after S or C is; from "SA" all the way to "SL", with each increment of letter, the performance of the oil will be better than the previous one, and there will be more additives in the oil to protect the engine. The further back the letter is, the higher the quality level, and the oil level in international brands is mostly above SF level.For example, Shell Helix Plus is API SL grade, while Shell Helix Red Motor Oil is API SG grade, which means that the quality grade of Heineken Extra is higher than that of Red Heineken.

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