American Petroleum Institute (API)

The American Petroleum Institute (API) represents all aspects of America’s oil and natural gas industry, having more than 625 corporate members from all segments of the industry, from the largest major oil companies to the smallest of independents. These include producers, refiners, suppliers, marketers, pipeline operators and marine transporters, as well as service and supply companies that support all segments of the industry.

For consumers, API provides the API’s Engine Oil Licensing and Certification System (EOLCS). It 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 quality engine oils for their gasoline- and diesel-powered vehicles.

The API engine oil specifications are used throughout the world and also used by many OEMs as the baseline performance upon which their own performance requirements are built.

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. 

Supporting the Changing Industry Ecosystem in the Middle East

December 12, 2022

Environmental concerns are driving governments into implementing new legislative measures across the world, the Middle East region is no exception.

API to Implement Provisional Licensing Through August 1 2020_car on road

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.

Silver car - Lubrizol passenger car

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.

Lubrizol 360 Podcast: LSPI & Why Oil Specs are Changing

June 14, 2019

Lubrizol business manager, Martin Birze, and PhD chemist, Matt Gieselman, discuss LSPI and why oil specs are changing.

Mitigating LSPI Over the Drain Interval

September 28, 2018

A three-part propensity and durability test evaluates fresh and used oil performance to prevent the harmful effects of low-speed pre-ignition.

Technological Leadership Through LSPI Performance

August 23, 2018

Oil marketers have the opportunity to demonstrate technical market leadership by delivering robust, long-term low speed pre-ignition protection to the marketplace.