What are the labels of motor oil? What does the oil designation represent?

The designation on the motor oil is based on the American Society of Automotive Engineers (SAE) oil viscosity classification.

This is a viscosity classification that classifies lubricants into high-temperature types for summer, low-temperature types for winter, and all-weather types for winter and summer.

The specific classification of lubricating oil is 6 types of winter oil, 4 types of summer oil, and 16 kinds of winter and summer general oil.

1.Shell lubricants used in winter are: 0w, 5w, 10w, 15w, 20w, 25w, the symbol w represents winter is the abbreviation of winter (winter), the smaller the number before w, the smaller the low temperature viscosity, the better the low temperature fluidity, the lower the applicable minimum temperature;

2.The grades of Shell lubricants used in summer are as follows, the larger the number, the greater the viscosity, and the higher the applicable maximum temperature;

3.The grades of general Mobil lubricants in winter and summer are: 5w w w w 40

10w w w w w 50, the smaller the number representing the winter part, the larger the number representing the summer part, the higher the viscosity, the larger the applicable temperature range.

1) High temperature type (such as SAE20 SAE50): The number indicates the viscosity at 100, and the larger the number, the higher the viscosity.

2) Low temperature type (such as Saeow Sae25W): W means only used in winter, the smaller the number, the lower the viscosity, and the better the low temperature fluidity.

3) All-weather type (such as SAE15W W W 50): It means that the viscosity grades at low temperature meet the requirements of SAE15W, 10W and 5W respectively

The viscosity grades at high temperatures meet the requirements of SAE respectively, and belong to the winter and summer general type. There is no problem with 5w-30 engine oil in Sichuan.

Hello! The specific classification of automobile engine oil is 4 kinds of summer oil, 6 kinds of winter oil, and 16 kinds of winter and summer general oil. Among them, the summer oil grades are respectively, the larger the number, the greater the viscosity, and the higher the applicable maximum temperature; The winter oil grades are:

0W, 5W, 10W, 15W, 20W, 25W, the symbol W represents the abbreviation of winter (winter), the smaller the number before W, the smaller the low temperature viscosity, the better the low temperature fluidity, and the lower the applicable minimum temperature; Then there is the winter and summer general oil, the grades are: 5w w w w w

Don't understand the oil label? Don't know the type of engine oil? All the answers about engine oil are here!

The main difference between the different grades of motor oil is the viscosity of the oil at high and low temperatures.

At. In the oil label, the value in front of W indicates the viscosity of the oil at low temperature, the smaller the value, the lower the viscosity at low temperature, and the better the low temperature starting performance.

The value after w indicates the viscosity of the oil at high temperature, the larger the value, the greater the viscosity at high temperature, and the better the protection performance of the engine at high temperature.

The more common machine rubber oil leakage labels are generally these: (5w20 5w30 5w40 used in the southern Liangming area) Huai cavity (0w30 0w40 used in the northern region) 5 (representing temperature) w30 (representing viscosity).

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Aconi lubricants have the answer for you, and the owner's manual of the general vehicle should write which oil is suitable for use.

The number before and after the w in the oil label means temperature and viscosity, the value in front of the w is the better the low temperature fluidity of the oil, when the ambient temperature is very low, it can better protect the car engine, the number behind the w indicates the car state to talk about the high temperature resistance of the engine, the larger the value, the better the protection of the car engine in the high temperature environment. The oil label consists of two parts: grade classification and viscosity specifications.

Motor oil labels usually represent viscosity and quality. The detailed analysis is as follows: the viscosity of the lubricating oil is marked with SAE and other marks, SAE is the English abbreviation of the Society of Automotive Engineers of America.

In winter, the smaller the value in front of it, the better the low-temperature fluidity of the oil, which means that the lower the working environment temperature that can be used, and the better the protection level of the car engine in cold start; The value after the "w" (behind a level) is an indicator of the heat resistance of the oil. The higher the value, the better the protection of the oil in high temperature environments.

The label after the classification of the oil grade indicates its viscosity specification, for example, in "-15°C-40 and 5W-40", "W" indicates winter. The smaller the value in front of it, the better the fluidity of the engine oil in the low temperature environment, that is, the lower the temperature of the working environment in which it can be used, and the better the protection level of the car engine in cold start. For example, 5W means -30 external low temperature environment.

The number after w indicates the kinematic viscosity of the oil at 100. The higher the value, the higher the viscosity. 40 means that the kinematic viscosity at 100 is between to, which is definitely not what some people say, and can be used at 40.

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