Proper Oil Viscosity Is The Best Protection For Motorcycles

About oil viscosity, can be simply understood as: high viscosity oil is thick oil film, thin oil is thin oil film. Why do you say that? Let's first look at the definition of viscosity. Viscosity is the internal resistance of the fluid, so the lubricating oil viscosity is usually referred to as the thickness of the oil. Therefore, when the engine is running, only the oil film does not break to protect the engine. If the oil film is thin in operation and the oil film is broken, the engine wear will be great.

One key metric involved here is the 100-degree kinematic viscosity. 100 degrees corresponds to the temperature of the engine, and this motion viscosity reflects the fluidity and flow resistance of the lubricating oil when the engine is running. The viscosity of a 100 degree lubricating oil is the kinematic viscosity, indicating the thickness of the oil film that the lubricating oil can form. In addition, oil according to the corresponding 100℃ kinematic viscosity and 40℃ kinematic viscosity can be calculated the corresponding viscosity index.

In the case of meeting the requirements of HTHS, when choosing oil, we also have the requirements of 100 degrees kinematic viscosity. Don't go high if you can. The 100-degree motion viscosity is mainly used to describe the state of the oil in other places besides the friction pair. If the viscosity is low, the car will feel relatively light, followed by a better feeling of power, and fuel economy will also help.

Of course, if you are very concerned about noise, the 100 degree viscosity is a little higher, for engine noise control will be helpful, this is for the same line of oil.

In the oil film thickness, some people say that the thicker the oil, the better, so that the oil film is thick enough, it can better protect the engine. In fact, this is a misunderstanding on the understanding. In fact, the viscosity of the engine oil is too high or too low, and the "appropriate viscosity" is the best. Because the viscosity of the oil is too large or too low, there will be the following shortcomings:

1. High viscosity

The viscosity is too high, the oil is thick, the oil can not be transported to the parts in a short time, so it will increase the wear and tear when starting, low temperature start will become difficult, the cleaning effect and cooling cooling effect become worse, the power loss leads to the increase of fuel consumption.

2. Too low viscosity

The viscosity is too low, the oil is thinner, and it can not be adsorbed between the parts very effectively, so the lubrication and anti-wear and sealing function can not be played well, and the oil consumption also increases.

Once the oil loses its viscosity, the oil film will also lose its ability to protect.