Exxonmobil Research and Engineering Company

Nancy Ortiz

Douglas Edward Deckman

Kevin John Kelly

David G L Holt

Haris Junuzovic

Camille A Killian

Provided is a non-Newtonian engine oil lubricant composition with improved fuel efficiency and engine wear protection. The lubricant composition includes a major amount of a base oil including a Group II base stock and an optional Group V base stock, from 0.1 to 9.0 wt. % of at least one viscosity modifier and from 0.1 to 1.2 wt. % of at least one friction modifier. The non-Newtonian engine oil lubricant composition has a kinematic viscosity at 100 deg. C. of less than or equal to 10 cSt and an HTHS (ASTM D4683) of less than or equal to 2.2 cP at 150&#xb0; C. Also provided are methods of using the lubricant composition in internal combustion engines and methods of making the lubricant composition.

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Laredo, TX, United States of America

Nancy Ortiz