It has been found that the occurrence of maximum VI depends on the lube oil used and the type and concentration of viscosity index improver. To calculate viscosity index we need viscosity of an oil both at 40☌ and 100☌. VI of blended oils, made from the lube oils (Servoneum 100, Servopress 68, Servomesh SP 220, and Servocut 335) by the addition of MMA, PBR, and Polyisoprene-cis, has shown the potential to reach the maximum value. The calculator on this site is for informative purposes only and we make no claims as to the accuracy, completeness or fitness for any particular purpose of the results produced by our calculators. The enhancement of VI of lube oils (Servoneum 100, Servopress 68, Servomesh SP 220, and Servocut 335) by the addition of viscosity index improvers (Methylmethacry-late (MMA), Polybutadiene rubber (PBR), and Polyisoprene-cis) has been studied. Calculate the Viscosity Index from Kinematic Viscosity. Viscosity Index improvers are added in the lube oils to reach the desired Viscosity Index (VI). Examples are power steering fluid, aircraft piston engine oils, modern internal-combustion engines, turbine engine oils (stationary and aircraft), and industrial gear oils. Viscosity Index (VI) improver has found its largest commercial applications as additives to engine oils. Calculate dynamic and kinematic viscosity of water and steam from temperature and pressure. Engine oils are widely used for lubrication purposes in automobile and related industries.
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