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.

ACEA 2022 Heavy-Duty Released

September 29, 2022

In May 2022, ACEA formally announced and released its most recent Heavy-Duty oil sequences, a significant increase in lubricant performance for commercial vehicles. 

Truck Lorry Highway

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.

Time to Renew Your Oil Contract

Time to Renew Your Oil Contract? Ask These Questions About Lower Viscosity Lubricants

March 03, 2022

Choosing the right oil can help protect engine hardware and reduce the potential for costly downtime. Asking these questions can help ensure that you are servicing your fleet with an optimized formulation. 

Why Fleets Should Have Confidence in FA4_L

Why Fleets Should Have Confidence in FA-4

January 26, 2022

The heavy-duty diesel marketplace should have the confidence to make a widespread shift toward lower-viscosity lubricants. Here’s why. 

Meeting Emissions Targets Isn't Getting Easier

January 01, 2022

The trucking industry is entering Phase 2 of the U.S. EPA's new greenhouse gas emissions and fuel efficiency standards, pushing OEM's to meet increasingly stringent targets.