Non-newtonian engine oil lubricant compositions for superior fuel economy

US12037562B2 · kind B2 · utility

Assignee

• Exxon Mobil Technology and Engineering Company · US

Inventors

• Haris Junuzovic · Hamburg, DE
• Douglas E. Deckman · Mullica Hill, US
• Benjamin D. Eirich · Frenchtown, US

Key dates

• Filing date: Jan 14, 2021
• Grant date: Jul 16, 2024
• Expiry date: Jan 14, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2060/14
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Provided is an engine oil lubricant composition with improved fuel efficiency. The engine oil lubricant composition may include: a polyalpha olefin base oil component an amount of about 50 wt % to about 90 wt % based on a total weight of the engine oil lubricant composition, wherein the polyalpha olefin base oil component is a Group IV base oil and has a Noack volatility of about 12.5% to about 15%; a Group II base oil component in an amount of about 0.1 wt % to about 50 wt % based on the total weight of the engine oil lubricant composition. The engine oil lubricant composition may have (i) a kinematic viscosity at 100° C. of about 10 cSt or less, (ii) a high temperature high shear viscosity at 150° C. of about 2.2 cP or less, and (iii) a Noack volatility of about 20% or less.