Browse clear reference guides to API, ACEA, ILSAC, JASO, and vehicle manufacturer oil standards.
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For more than 75 years, API has led the development of petroleum and petrochemical equipment and operating standards. These represent the industry’s collective wisdom on everything from drill bits to environmental protection and embrace proven,...
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ACEA Engine Oil Sequences: current light-duty (2023) and heavy-duty (2024 Revision 1) categories, claim-status dates, terminology, and historical context.
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During the mid-90s it became clear that the JASO Specifications cannot satisfy the requirements of the modern European two-stroke engines. The ISO standards listed below were developed to address this shortcoming. Their basis is the...
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2T specifications Japeneese motorcycle manufacturers found the limits demanded by the API TC specifications too loose. Oils meeting the API TC standard still produced excessive smoke and could not prevent exhaust blocking. Therefore the Japanese...
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ILSAC gasoline-engine-oil specifications: current GF-7A and GF-7B, the GF-6 transition through September 30, 2026, API certification marks, and historical GF categories.