Closer Look CK-4/FA-4 Oil Development

摘要

December 1, 2016, marked the official availability of two new diesel engine oils, CK-4 and FA-4. These new oils, as most are aware, were developed to meet the more demanding lubrication and fuel-efficiency requirements of newer engines, whether on-road or off-road. The thumbnail history of the new oils goes back a number of years, when diesel-engine manufacturers began to question whether some formulations of the then-current oil, CJ-4, introduced in 2006, were capable of functioning adequately in the more hostile working environments of technically advanced engines running with complex emissions-control systems. The American Petroleum Institute (API), a large U.S. trade association for the oil and natural-gas industry, subsequently formed a New-Category Evaluation Team, which determined that the industry would be well-served to move beyond CJ-4.