EOLCS Program Documents
Press Releases
The press release section is where you can find the most up-to-date information about the EOLCS Program.
Branding Guide
This eleven-page guideline is intended to help licensees display and use the API Quality Marks properly. A downloadable Branding Guide is available in PDF format.
Motor Oil Guide
This six-page laminated guide is designed to help consumers understand the API Engine Oil Quality Marks—the API Certification Mark "Starburst," the API Certification Mark "Shield" and the API Service Symbol "Donut"—and the API Service Categories. A downloadable Motor Oil Guide shelf card is available in PDF format.
API 1509 Documents
API 1509 describes the voluntary API Engine Oil Licensing and Certification System (EOLCS) and explains to marketers how different API marks are licensed and displayed for the consumer. The current edition of API 1509 is now available and can be downloaded in pdf format.
API TR 1533, Lubricants Life Cycle Assessment and Carbon Footprinting—Methodology and Best Practice
The purpose of this Technical Report is to define terminology and to identify and capture industry practices for life LCA and CFP of lubricants. Life cycle assessment (LCA) and carbon footprints of products (CFP) are established methodologies used to quantify the environmental performance of products, processes, or services, and are increasingly being used as a basis for environmental decision-making along the supply chain.
API RP 1525, Bulk Oil Testing, Handling, and Storage Guidelines
API RP 1525 is intended for petroleum terminal and tank facilities associated with the storage and distribution of petroleum lubricants as a resource and management guide by those responsible for such facilities and by those working on their behalf.
API 1525A Bulk Engine Oil Chain of Custody and Quality Documentation
API 1525A provides procedures for managing bulk engine oil chain of custody to ensure oil quality from the point of manufacture to installation in the end user’s engine.
Publication 1520, Directory of Licensees: API Engine Oil Licensing and Certification System
Publication 1520 assists consumers in selecting quality engine oils by identifying the companies licensed to display the API Engine Oil Quality Marks. This Licensee Directory is updated as often as several times a week and can only be accessed on-line.
Publication 1560, Lubricant Service Designations for Automotive Manual Transmissions, Manual Transaxles, and Axles, 9th Edition, November 2023
Publication 1560 describes API gear lubricant service designations and assists manufacturers and users of automotive equipment in the selection of transmission and axle lubricants for a variety of operating conditions.
EOLCS User Guide
This document provides an array of step-by-step instructions and screenshots to assist the user with the online application system and license maintenance.
