What does a few w and a few 0 engine oil mean, and what does 0w engine oil mean?

Here's an example of what 10w-30 means:

10w-30, "w" stands for "winter" which means used in winter, and the 10 in front of "w" represents the viscosity at low temperatures, the smaller the number, the stronger the fluidity at low temperatures, and the stronger the ability to withstand cold. "30" refers to the viscosity at 100, and the higher the number, the higher the viscosity and the stronger the ability to withstand high temperatures.

SAE is the English abbreviation of the Society of Automotive Engineers of America, and the SAE grade represents the viscosity grade of the oil. SAE30 and SAE40 are single-grade oils, and SAE10W 30 and SAE15W 40 are multi-grade oils. Among them,"w"The higher the previous number, the lower the viscosity at low temperatures, the better the protection ability of the engine during cold start; "w"The following figures are an indicator of the oil's resistance to high temperatures.

For example, 5w-40 handfuls. 5 is the fluidity of cold starter oil, w is the abbreviation of winter English, and 40 is the high temperature resistance of the engine oil. and antioxidant degrees. The ** of engine oil generally looks at the previous figures. The smaller the number, the more expensive it is.

Hello, let me give you an example, for example, 5w30, then w stands for winter, which means winter, which has no practical meaning, just look at it as a dividing line. The smaller the number in front of w, the better the fluidity of this oil, the better the fluidity at low temperatures, and the more resistant it is to low temperatures. The number after w represents viscosity, with the higher the number.

The more resistant to high temperatures. When choosing an engine oil, you need to consider the mileage of the model and the use environment, so as to choose the most suitable engine oil.

"w" means winter (winter), the more ** the number in front of it, the better the low temperature fluidity of the engine oil, the lower the ambient temperature available for use, and the better the protection ability of the engine during cold start; The number after the "W" (after a horizontal line) is an indicator of the high temperature resistance of the engine oil, and the higher the value, the better the protection performance of the engine oil at high temperatures.

The viscosity grade of the oil, w is the grade at low temperatures and the viscosity grade at high temperatures is followed by it.

The front is the temperature, and the back is the viscosity.

This is the knowledge of engine oil labeling. The W in the text is actually the abbreviation of the English word "socks buried in winter", which represents this engine oil, which is common in summer and winter. (In fact, this is the case with civil engine oils now).

The number in front of W stands for "Minimum Applicable Oil Temperature". That is, how well the oil flows at low temperatures. For example, the minimum applicable temperature of the 5th generation Omori watch oil is about minus 25 degrees Celsius.

If it is below -25 degrees, you should be careful. Because it can become very viscous and difficult to flow. (Ask a lot of articles are written wrong, they write 5w can be used to minus 30 degrees, in fact, it is not accurate)

The number 0 indicates that the minimum applicable temperature of the oil can reach minus 35 degrees. Then in the northeast and northwest of China, the outdoor temperature will actually be very cold in winter, so you need to consider 0w engine oil.

Aconi lubricants answer for you, 0w is the engine oil label, the number 0 represents the minimum suitable temperature of the engine oil, and w represents the general usage of the oil in summer and winter or nuclear season.