Abstract: A lubricant composition includes: an oil selected from among polyalkylene glycols (PAG); and a nitrogen compound selected from among amine phosphates or amine tungstates. The lubricant composition is particularly suitable for lubricating a vehicle engine, preferably a motor vehicle engine. Also disclosed is an engine lubrication method utilizing such composition.

Abstract: In the field of lubricating compositions for motor vehicles, there is disclosed a lubricating composition of a grade according to the SAEJ300 classification defined by the formula (X) W (Y) wherein X represents 0 or 5 and Y represents an integer ranging from 4 to 20. This lubricating composition includes at least one polyalphaolefinic oil (PAO), from 10 to 80% by weight of the composition of at least one oil of group V and at least one comb polymer. Also isclosed is the use of this lubricating composition for improving the Fuel Eco (FE) of a lubricant or for reducing the fuel consumption of an engine, in particular a motor vehicle engine, notably a motor of a hybrid vehicle.

Abstract: Disclosed is a lubricant composition including: an oil chosen from polyalkyl glycols (PAG or polyalkylene glycols); and an anti-wear additive chosen from compounds of formula (I) in which R1 and R2, which may be identical or different, independently represent a linear or branched secondary alkyl group including from 2 to 7 carbon atoms, preferably from 3 to carbon atoms. This lubricant composition is particularly useful for the lubrication of a vehicle engine, preferably of a motor vehicle.

Abstract: A lubricant composition includes: an oil selected from among polyalkylene glycols (PAG); and a nitrogen compound selected from among amine phosphates or amine tungstates. The lubricant composition is particularly suitable for lubricating a vehicle engine, preferably a motor vehicle engine. Also disclosed is an engine lubrication method utilizing such composition.

Abstract: In the field of lubricating compositions for motor vehicles, there is disclosed a lubricating composition of a grade according to the SAEJ300 classification defined by the formula (X) W (Y) wherein X represents 0 or 5 and Y represents an integer ranging from 4 to 20. This lubricating composition includes at least one polyalphaolefinic oil (PAO), from 10 to 80% by weight of the composition of at least one oil of group V and at least one comb polymer. Also isclosed is the use of this lubricating composition for improving the Fuel Eco (FE) of a lubricant or for reducing the fuel consumption of an engine, in particular a motor vehicle engine, notably a motor of a hybrid vehicle.