Patent ID: 9506008
Filing Date: 2016-11-29
CPC Classification: C10M,C10N

Claim Text:
1. A method for improving fuel efficiency and reducing frictional properties, while maintaining or improving deposit control, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil, said formulated oil having a composition comprising a lubricating oil base stock comprising a mixture of Group III, Group IV and Group V base oils at from 84.01 to 85.51 wt. % of the formulated oil; and a combination of (i) a friction modifier mixture comprising 0.25 to 0.75 wt. % ethoxylated fatty ester friction modifier, and 0.1 to 0.25 wt. % borated glycerol mono-oleate friction modifier, and (ii) a detergent mixture comprising 1.0 to 3.0 wt. % petroleum derived calcium sulfonate and 2.5 to 3.0 wt % mixed calcium salicylate; and wherein deposit control (as determined by TEOST 33C-SAE 932837 and SAE 962039) is less than or equal to 16 mg, and frictional performance (as determined by MTM at 140° C.) is less than or equal to 0.113.