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The article presents conducted research on the effects of the additives of vegetable oil on the viscosity of used marine engine oil Marinol RG 1240. Specifically, it shows dependence between viscosity and temperature for: fresh mineral oil, used mineral oil and blends of oils. Research results were compared and assessed. The viscosity of all oil samples were measured using Vibro Viscometer SV-10, at range of temperatures 5°C-65°C. It is noted that most of the used engine oil samples increase value of viscosity compared to fresh oil. However, the addition of 10% rapeseed oil significantly reduced viscosity parameters for all studied temperatures.

The Effects of the Addition of Vegetable Oil on the Viscosity of Used Marine Engine Oil Marinol RG 1240