LUBRICATION OF RECHARGEABLE HYBRID VEHICLE ENGINE AND HYBRID VEHICLE COMPRISING A RANGE EXTENDER

The application concerns the use of a lubricant composition of grade 0W-8 according to the SAEJ300 classification, comprising at least one base oil, from 1 to 1000 ppm of at least one friction modifying additive and from 0.1 to 10% by weight of at least one polymer improving the viscosity index, said lubricant composition having kinematic viscosity measured at 40° C. according to standard ASTM D445 lower than or equal to 20 mm2/s, kinematic viscosity measured at 100° C. according to standard ASTM D445 lower than 5 mm2/s, and Noack volatility measured at 250° C. according to standard CEC-L-40-A-93 of between 10 and 85%, preferably between 25 and 85%, more preferably between 60 and 85%, for the lubrication of a rechargeable hybrid vehicle engine or a hybrid vehicle engine comprising a range extender.