To determine the viscosity of different lubricating oil of different brands apparatus
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... The most important single property of lubricating oil is its viscosity. Lubricating oils are used in different fields depending on their viscosity and viscosity index (VI) which is an important affectingfactor on the field of application of lubricant (Braga et al., 2014). The variation of viscosity of a lubricant with change in temperature is determined by its VI, which is an arbitrary number calculated from the observed kinematic viscosities at two widely separated temperatures (generally at 40°C and 100°C; Mohamada et al.,
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