| abstract |
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°C. Also provided are methods of using the lubricant composition in internal combustion engines and methods of making the lubricant composition. |