New Addendum to the 16th Edition of API 1509 Now Available
API is pleased to announce a new addendum to the 16th Edition of API 1509, Engine Oil Licensing and Certification System. The 16th Edition of API 1509 along with the addendum can be downloaded for free. To get your copy, click here.
API Announces Discontinuation of Licensing Diesel Engine Oils with API CG-4 Specification
On August 31, 2009, API will discontinue licensing diesel engine oils against the API CG-4 specification. This action became necessary after API's Lubricant Committee voted by letter ballot to cease licensing against the performance specification. The Engine Manufacturers Association (EMA) has endorsed API’s decision to discontinue licensing of CG-4. To download a full copy of this notice letter, click here.
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