机油类型（Oil type）.docVIP

机油类型（Oil type） Imported brands of engine oil have been widely used in China. The following methods for marking oil correctly are introduced below. For example: API, SF, SAE, 15W/40. API-- American Petroleum institute; SF-- oil quality label, suitable for 1980 after the production of gasoline engines developed; SAE-- American Society of automotive engineers; 15W/40-- oil viscosity applies to the range of -15 degrees -40 degrees celsius. Imported oil is often used for SAE viscosity and API mass to indicate its quality and viscosity. The United States SAE (American Society of Automotive Engineers) viscosity label and API (American Petroleum Institute) quality label are widely used internationally. Table 1 quality index for API-S series gasoline engine oil. Table 1 quality specification of API-S series gasoline engine oil Grade Introduction of oil product range of American Petroleum Institute (API) American Society for testing and materials (ASTM) | oil performance SA For gasoline engines and diesel engines. An old-fashioned engine for very mild running conditions. In addition to the special recommendation of the automobile manufacturer, it is no longer in use In addition to the pour point depressant and anti foaming agent, it does not contain other types of additives. SB A gasoline engine for low load. An old-fashioned gasoline engine for mild running conditions. In addition to the special recommendation of the automobile manufacturer, it is no longer in use. The oil has a certain degree of antioxidant and anti-wear properties. SC A gasoline engine for 1964-1967 year cars and trucks. This kind of oil can control gasoline, high and low temperature deposits, wear, corrosion and corrosion. The oil has the ability to prevent deposits and rust. SD A gasoline engine for cars and parts of trucks for 1968-1971 years, suitable for domestic gasoline engines such as the liberation and the East wind. This kind of oil prevents the gasoline engine from high temperature and low tempe