The standards are now fully approved and American Petroleum Institute (API) will allow products that meet these new specs to be “licensed” starting on Dec. 1, 2016.
These new specifications include new performance requirements that make API CK-4 and API FA-4 significant upgrades to API CJ-4. Most notably, oils that meet the new standards ...
These new oil specifications are definitely demanding and will require the use of new and, in some cases, more additive componentry to improve their performance.
