Difference between oil viscosity and oil viscosity index
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oil viscosity-defined as its resistance to flow and shear due to gravity
oil viscosity index-rate of change of viscosity between two temperatures
the lower the viscosity index ,the greater the change of viscosity of oil with temperature and vice versa
oil viscosity index-rate of change of viscosity between two temperatures
the lower the viscosity index ,the greater the change of viscosity of oil with temperature and vice versa
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what is viscosity of oil
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