American Petroleum Institute (API) announced the approval of improved performance standards for engine oils that will provide greater protection and fuel efficiency for today’s gasoline-engine ...

The API CJ-4 oil category includes 9 fired engine tests and 6 bench tests. The new multi-cylinder tests in the category include Caterpillar C13, Cummins ISB, Cummins ISM, Mack T-12, and Mack T-11, ...

API Approves Development of PC-12 Diesel Engine Oil Category Fleets and drivers should expect improved oil performance, which supports enhanced engine durability and aids in meeting regulations.

API CI-4 oils are pivotal components in maintaining diesel engine durability using cooled EGR. API CI-4 is a higher quality oil than the previous diesel oil categories, so it will provide engine ...

Gen III then submitted its first Group III based 5 W-30 PCMO formulation and ReGen III product to API’ s Engine Oil Licensing and Certification System.

Chevron is releasing its line of Delo 400 API CK-4 and FA-4 heavy-duty engine oils (HDEO), engineered from the company’s proprietary ISOSYN engine oil formulation, called ISOSYN Advanced Technology.