Broader adoption of API FA-4 expected for future engines

摘要

On 1 December 2016,the American Petroleum Institute(API) started the licensing for two new heavy-duty engine oil categories,API CK-4 and API FA-4-The specifications superseded API CJ-4,which was originally introduced in October 2006.At the time this milestone was heralded as the biggest change in heavy-duty diesel engine oils in more than a decade,offering more advanced engine oils for on-and off-highway vehicles.The specifications were the result of years of coordination between the American Petroleum Institute(API],engine manufacturers represented by the Truck & Engine Manufacturers Association(EMA),oil additive producers represented by the American Chemistry Council(ACC),and ASTM International.These new categories delivered the necessary certification for improved engine oils and cleaner more fuel-efficient engines provide the trucking,construction and agriculture industries greater oxidation resistance,enhanced aeration control,-to lessen the risk of air becoming entrained in the engine-and better shear stability.