The Modern Viscosity Modifiers of Engine Oils

This article discusses the pecularities of chemistry and architecture of polymers – modern viscosity modifiers of engine oils, the proposed mechanism of their action, influence the rheological, dispersing properties, energy- and resource saving propertiesof engine oils. The quality scores such as tightening efficiency and shear stability and concepts of permanent and temporary viscosity loss are considered. The short charachteristics of the bench test methods of polymers shear stability conserns.