The ___________ is a measure of how the viscosity changes with temperature; the higher the index, the smaller is the change in viscosity with temperature.
The ___________ is a measure of how the viscosity changes with temperature; the higher the index, the smaller is the change in viscosity with temperature. Correct Answer Viscosity index
It’s an arbitrary measure for the change of viscosity with variations in temperature. The lower the index, the greater the change of viscosity of the oil with temperature and vice versa. It is utilised to characterize viscosity changes with relation to temperature in lubricating oil.