The shock absorber was invented to reduce the force of the bump caused by the motion of the vehicle. The shock absorber is a device to control shock or stress. The shock absorber is very common today and the technology of it advances as time goes by. If the oil inside the shock absorber has a higher viscosity level it would take a longer amount of time for the shock absorber to reduce the shock. If the oil has a lower viscosity level the shock absorber might respond to quickly to the shock and it might cause the vehicle to not respond without any control.
Viscosity is the degree to which fluid resists flow of an applied force.
The temperature affects the level of viscosity. The higher the temperature is the lower level of viscosity. The lower the temperature the higher level of viscosity the fluid has. Viscosity in a shock absorber is used when there is oil in a cylinder, which different levels of viscosity is used in different conditions for safety and control. Damping is the resistance generated by the damper.