International Lubricant Specification Advisory Committee (ILSAC)

Founded in 1992, the International Lubricant Standardization and Approval Committee (ILSAC) is an organization through which Ford, General Motors, Chrysler and the Japan Automobile Manufacturers Association, Inc. (JAMA) develop minimum performance standards for passenger car engine oils used in gasoline fuelled engines.

The ILSAC standards, denoted by the terminology ILSAC GF-x, are based upon the API service categories and bring additional performance requirements, for example fuel economy improvement, and restrictions in the viscosity grades that may claim to meet an ILSAC standard.

ILSAC utilizes the API’s Engine Oil Licensing and Certification System (EOLCS). This is a voluntary licensing and certification program that authorizes engine oil marketers who meet specified requirements to use the API Engine Oil Quality Marks. These emblems go directly on each container of oil that retains the certification for and is there to help consumers identify a engine oils for their gasoline-powered vehicles. Only oils meeting the latest ILSAC standard may use the API Certification Mark.

For a deeper dive into specifications, see the Lubrizol Ready Reference Guide, the industry's go-to resource for understanding fuel and lubricant performance principles and requirements. 

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The Science Behind New Lubricant Testing

May 02, 2022

Behind every modern, marketable lubricant is a rigorous testing protocol designed to meet specifications and build confidence in the product.

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API Implements Provisional Licensing Through August 1, 2020

April 16, 2020

In response to increased global supply constraints, as well as an accumulation of ROBO backlogs, API has issued provisional licensing with immediate effect until August 1, 2020.

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Adoption of ILSAC GF-6A, GF-6B And API SP Categories

July 24, 2019

Earlier this month, the American Petroleum Institute (API) officially announced the adoption of the new International Lubricant Specification Advisory Committee (ILSAC) and API categories.

Preparing for ILSAC GF-6

June 07, 2019

A new motor oil standard, ILSAC GF-6, is being introduced into the marketplace. In this video, we look at what led to this next generation ILSAC standard, how it differs from API SN Plus, LSPI mitigation and more.

One Step Closer to ILSAC GF-6 First License Date

April 08, 2019

An agreement in principle on the ILSAC GF-6A and GF-6B specifications has been set for a May 1, 2020 first license date. 

Testing and Developing Tomorrow’s Lubricants

October 02, 2018

Delivering lubricant technology that enables tomorrow’s engines requires new thinking about how we test and certify lubricants. And it can’t be done by testing on engines of the past.