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ILSAC Proposes Development of GF-8 Motor Oil Specification

21 Feb 2025

The International Lubricants Standardization and Advisory Committee (ILSAC) has formally requested the American Petroleum Institute (API) to initiate the development of a new gasoline engine oil specification, designated as ILSAC GF-8. This proposed standard aims to succeed the forthcoming GF-7 specification, with first licensing for GF-7 scheduled on March 31, 2025. ILSAC's proposal targets the completion of GF-8's initial licensing by the end of the third quarter of 2028.

The International Lubricants Standardization and Advisory Committee (ILSAC) has formally requested the American Petroleum Institute (API) to initiate the development of a new gasoline engine oil specification, designated as ILSAC GF-8. This proposed standard aims to succeed the forthcoming GF-7 specification, with first licensing for GF-7 scheduled on March 31, 2025. ILSAC's proposal targets the completion of GF-8's initial licensing by the end of the third quarter of 2028.


The primary objectives of the GF-8 specification include enhancing fuel efficiency, providing improved protection for hybrid electric vehicle (HEV) engines, and supporting higher temperature operations in internal combustion engines (ICEs). To achieve these goals, ILSAC recommends updating or replacing specific engine and bench tests to elevate the performance of passenger car engine oils globally.


Key proposed updates encompass:


  • Sequence IIIH and IIIHA Tests: Evaluating viscosity increase and aged oil performance to maintain or improve current standards.


  • Sequence VH and VIE/F Engine Tests: Replacing existing tests with new ones that correlate with or enhance current results, particularly focusing on fuel economy improvements.


  • Sequence IX Test: Reviewing aged oil low-speed pre-ignition (LSPI) to ensure engine protection.


  • Additional Bench Tests: Incorporating ASTM D130 copper corrosion and ASTM D6594 high-temperature corrosion tests, along with updating the Oil Gelation Procedure and seal testing criteria.


ILSAC also emphasizes the importance of evaluating the impact of ethanol gasoline blends, aiming to protect engines using up to 20% ethanol fuels. A critical goal of the GF-8 specification is to maintain backward compatibility with existing categories, ensuring a seamless transition for current engine technologies.


The development of gasoline motor oil specifications follows the consensus-based process outlined in Annex C of API 1509 – Engine Oil Licensing and Certification System, ensuring collaborative industry-wide standards.


This initiative reflects ILSAC's commitment to advancing engine oil performance standards in response to evolving automotive technologies and regulatory requirements.


The detailed article published by jobbersworld.com can be accessed from https://jobbersworld.com/2025/02/19/ilsac-has-submitted-a-request-to-the-api-for-the-development-of-the-gf-8-motor-oil-category/

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