Mineral oil; It is a lubricant, which is one of the products obtained in the refining process of crude oil. After the petroleum refining process in which it is produced, it is passed through special processes again and base oils used in the raw materials of mineral oils are obtained. Mineral oil is obtained as a result of mixing base oils with different viscosities and different additives selected to meet expectations and needs. Base oils and additives suitable for the intended use have critical importance in product selection.