Base oil can be obtained from oil or non-oil sources. virgin base oil obtained from crude oil .Since most of the base oil used in the production of lubricants obtained from oil resources. base oil properties of the oil obtained is dependent on the type of crude oil and refining operations. base oil is chemical components during the refining process of crude oil from which it obtained, to inherit. Since crude oil containing different combinations such as paraffinic hydrocarbons, naphthenic and aromatic sulfur compounds are also, base oil are also made up of these compounds. base oil composition comprising a major effect on the properties of spent oils, paraffinic compounds, naphthenic and aromatic