Lubricating compositions for motor vehicles

Abstract

The present invention relates to the field of lubricating compositions and base oils for motor vehicles. The invention provides a lubricating composition for engines, gearboxes, or vehicle axle assemblies. Said lubricating composition contains an oil-soluble polymer that is a specific polyalkyl glycol or a specific polyalkylene glycol (pag). The invention also relates to the use of said lubricating composition for reducing fuel consumption in a vehicle provided with an engine, an axle assembly, or a gearbox that are lubricated using said lubricating composition or said specific pag.