机油型号（Oil model）.docVIP

机油型号（Oil model） Engine oil catalog Viscosity indication Quality representation Basic classification of oil Specific selection of engine oil Oil change period Function of engine oil Counterfeit oil identification methods are generally three kinds of counterfeit oil: How to distinguish between true and false oil? Viscosity indication Quality representation Basic classification of oil Specific selection of engine oil Oil change period Function of engine oil Counterfeit oil identification methods are generally three kinds of counterfeit oil: How to distinguish between true and false oil? Open The oil mark usually denotes viscosity and quality. Specific reads are as follows: Edit this section viscosity indication In the outer packing of oils, we often see SAE and API. SAE is the abbreviation of the American Automotive Engineering Association, and API is the abbreviation of the American Petroleum association. The label at the back of SAE indicates the viscosity of the oil, and the label at the back of the API indicates the quality level of the oil. 10W-40 SAE is the standard viscosity of its value, the viscosity value of this oil is said first stage lubricating oil (now civilian areas have basically no monograde oil), W on behalf of WINTER in winter, W in front of the figure is representative is simply pour point temperature, freezing point temperature. The corresponding freezing point temperature of 10W oil is -25 degrees centigrade, and other common 0W is -35 DEG C, 5W is -30 DEG C, and 15W is -20 DEG C. The numbers behind W represent the kinematic viscosity of the engine at 100 degrees centigrade. The higher the value, the higher the viscosity. 40 represents 100 degrees Celsius, the viscosity of the movement is between 12.5mm2/s and 16.3mm2/s. It is definitely not what some people call it. It can be used at 40 degrees centigrade. You know, when the engine is running, the temperature does not necessarily depend on the ambient temperature. For a long time, the engine tem