Engine oil lubricant compositions and methods for making same with superior engine wear protection and corrosion protection

US11697782B2 · 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: Jun 8, 2021
• Grant date: Jul 11, 2023
• Expiry date: Jun 8, 2041

Classification

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

Abstract

Provided is an engine oil lubricant composition with improved fuel efficiency and engine wear protection. The lubricant composition may include a major amount of an oil basestock from any one or more Group I, Group II, Group III, Group IV or Group V base oils. The resulting engine oil lubricant composition may have a kinematic viscosity at 100° C. of 6 cSt or less, and a corrosion protection of at least 90, as measured according the ASTM D6557 Ball Rust Test. The resulting engine oil lubricant composition may also have a kinematic viscosity at 100° C. of 6 cSt or less, an HTHS (ASTM D4683) of less than or equal to 2.2 cP at 150° C. and a FZG failure load stage of at least 6, as measured by the FZG A10/16.6R/130 test procedure.