METHOD FOR IMPROVING ENGINE FUEL EFFICIENCY AND ENERGY EFFICIENCY

FigTraction Condtions- 100 ° C, 1.25 GPa, 2.00 m/s Group V-A Group IV-2 *Group III - B4 ...A.. , Group IV-4 ▪ V - B ▪ C18 Dimer \"v\"lif,... Coco nit Oil C28 MP 40 50 60 Slide-to-Roll Ratio 1 (%) (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIP0 I PCT o n °nolo VIII SID Em mil no iflo (10) International Publication Number WO 2018/175830 A4 (51) International Patent Classification: ClOM 171/02 (2006.01) Cl OM 169/04 (2006.01) C10M 111/02 (2006.01) (21) International Application Number: PCT/US2018/023922 (22) International Filing Date: 23 March 2018 (23.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/475,980 24 March 2017 (24.03.2017) US 15/928,996 22 March 2018 (22.03.2018) US (71) Applicant: EXXONMOBIL RESEARCH AND EN- GINEERING COMPANY [US/US]; 1545 Route 22 East, P.O. Box 900, Annandale, NJ 08801-0900 (US). (72) Inventors: BURNS, Raymond, G.; 370 Cashel Court, As- ton, PA 19014 (US). DANCE, Smruti, A.; 12 Malsbury Street, Robbinsville, NJ 08691 (US). DECKMAN, Dou- glas, E.; 5 Peachtree Lane, Mullica Hill, NJ 08062 (US). HAGEMEISTER, Mark, P.; 210 Yorktown Drive, Mulli- ca Hill, NJ 08062 (US). (74) Agent: YARNELL, Scott, F. et al.; Exxonmobil Research And Engineering Company, 1545 Route 22 East, P.O. Box 900, Annandale, NJ 08801 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, (54) Title: METHOD FOR IMPROVING ENGINE FUEL EFFICIENCY AND ENERGY EFFICIENCY (57) : A method for improving fuel efficiency and energy efficiency, while maintaining or improving deposit control and cleanliness performance, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil includes a base oil mixture. The base oil mixture includes a lubricating oil base stock as a major component, and at least one cobase stock, as a minor component. The at least one cobase stock is present in an amount sufficient to reduce kinematic viscosity (Kv100) of the base oil mixture as determined by ASTM D445, while maintaining or controlling cold cranking simulator viscosity (CCSV) of the lubricating oil as determined by ASTM D5293-15, such that the l