What does search engine viscosity mean

The fluid is in the phase when it flows.

If there is a relative motion between the adjacent fluid layers, then frictional resistance will occur between the two fluid layers, which is called viscous force. Viscosity is a physical property data used to measure the magnitude of viscosity. Viscosity has dynamic viscosity, and its unit is:

Pascal seconds (pa·s); Kinematic viscosity is the ratio of the dynamic viscosity of a substance to its density in engineering calculations, and its unit is: (m2 s). It is also used in the petroleum industry"En's viscosity", which is not the viscosity concept described above.

Rather, it is a reading of the fluid that is determined directly in the Engualla viscosity.

Viscosity Unit: The unit of measurement for viscosity.

Engine oil is divided into single viscosity oil (such as SAE30) and multi-viscosity oil (such as SAE5W-30), and now most vehicles use multi-viscosity engine oil, because this oil contains a variety of special additives, so that the oil is easy to flow and non-condensing in a low temperature environment, and maintain viscosity and non-decomposition in a high temperature environment. The w in the oil label indicates winter, and the number before the w indicates the low temperature fluidity of the oil, the smaller the number, the better the fluidity of the oil. Engine wear is mainly concentrated in the moment of cold start, and good oil flow can minimize engine wear.

The number after w indicates the high temperature viscosity of the oil, and the higher the number, the better the protection performance at high temperatures.

This is the meaning of the viscosity of engine oil, and if you want to know what the specific situation is, you can also ask the 4S store.

W is the first letter of the English word winter. If there is a w in the viscosity grade, it means that the oil of the viscosity grade can be used at a lower ambient temperature; Conversely, if not in the viscosity grade, the oil is suitable for higher operating temperatures.

w is the meaning of winter. The smaller the number before w, the smaller its low temperature viscosity, the better the low temperature fluidity, and the lower the applicable minimum temperature, the larger the number after w, the greater its viscosity, and the higher the applicable maximum temperature. The scope of application of various compound engine oils is as follows (figure):

You can think of the left side of this equal sign as a unit, because m stands for Mooney, which is the initial letter of the English mooney. The following are the operating conditions during the measurement, where @ is only equivalent to a space for spacing, L represents the large rotor, 1 is the preheating temperature, 10 is the experimental time, that is, the rotor rotation time, and 121 is of course the experimental temperature; It can also be said that Menny's unit is m, which is expressed in scales and has no units.

If you have to come out as a whole unit, then 1 Mooney unit can be expressed as torque. For more information, see the national standard push 1232, which is helpful to you.

ku is the unit, and the ku viscosity value means that the viscosity value you measure must be in ku unit! Generally, a Stormer viscometer is used.

The viscosity range is in between and is the unit of viscosity and is read as "millipascal." Second.

It should mean that the viscosity range is between 2000 and 3000, and the estimated unit should be cp.