KnowledgebasE Article

What is JASO, ILSAC, API, and ACEA?

This article introduces standards set by four major organisations in the industry - the Japanese Automotive Standards Organization (JASO), the International Lubricant Specification Advisory Committee (ILSAC), the American Petroleum Institute (API), and the European Automobile Manufacturer’s Association (ACEA).

International Lubricant Specification Advisory Committee (ILSAC)

Formed in 1992, ILSAC represents a collaboration between U.S. and Japanese automobile manufacturers. This organisation defines minimum performance standards for engine oils in petrol vehicles. Read more in our article on ILSAC.

Japanese Automotive Standards Organisation (JASO)

JASO sets specific performance and quality standards for petrol engines, with a particular focus on motorcycles and vehicles of Japanese origin. Read more in our article on JASO.

American Petroleum Institute (API)

API, the American Petroleum Institute, designates API ratings to motor oil blends meeting current ILSAC standards. Read more in our article on API.

European Automobile Manufacturer’s Association (ACEA)

ACEA provides standards for European manufacturers, drawing from tests developed by the European Engine Lubricants Quality Management System (EELQMS). Similar to API and ILSAC in the U.S., ACEA introduces new specifications or sequences in response to advances in engine technologies and newly introduced emission specifications from the E.U. They ensure oils conforming to these new sequences are readily available to the public upon the introduction of a new vehicle requiring them.

It’s crucial to note that these standards serve as general guidelines and may be superseded by specific vehicle manufacturers’ requirements. Therefore, always consult your vehicle’s owner’s manual for precise oil specifications. Read more in our article on ACEA.

Rock Oil and Industry Standards

Rock Oil is committed to manufacturing high-quality oils and lubricants that meet and often surpass these industry standards. Depending on the application and product type, Rock Oil products comply with JASO, ILSAC, API, and ACEA specifications. This commitment to excellence assures optimum performance and protection for many vehicles, offering consumers peace of mind and confidence in their lubricant selection.