%0 Journal Article %T Quality assessment engine oil and its replacement under actual state %A Timokhov, R.. %A Evdokimova, K.. %A Timokhova, O.M. %K engine oil, diagnostics, properties motor oil, additives %J Actual directions of scientific researches of the XXI century: theory and practice %D 2014 %N 2 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov