Non-newtonian engine oil with superior engine wear protection and fuel economy

US10479956B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Nancy Ortiz · Laredo, US
• Douglas E. Deckman · Mullica Hill, US
• Kevin J. Kelly · Mullica Hill, US
• David G.L. Holt · Medford, US
• Haris Junuzovic · Hamburg, DE
• Camille A. Killian · Swedesboro, US

Key dates

• Filing date: Sep 13, 2017
• Grant date: Nov 19, 2019
• Expiry date: Dec 18, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/255
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

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.