Provisional Licensing for COAT Test

The ASTM Caterpillar Surveillance Panel Chair has informed API that the ASTM D8047 ("COAT") test is again available for candidate oil testing. In response to this notification, API's Engine Oil Licensing and Certification System (EOLCS) has declared COAT Provisional Licensing closed in accordance with paragraph 6.7 of API 1509. Marketers with formulations that have been provisionally-licensed for COAT must now obtain a passing COAT result within 6 months from the date of this notification.


Upon passing the test, the licensee will request full licensing of the formulation by entering a new formulation into the online application system and applying the formulation to each affected product before submitting to API for review. API will review the formulation and, once approved, withdraw the provisionally licensed formulation. If a provisionally licensed oil fails to pass COAT, the licensee must notify API immediately. The licensee agrees to take whatever corrective action is deemed necessary by API to protect consumers or API in a time frame specified by API. Required corrective actions may include product recall.


If a new oil formulation is not received by API by the end of the 6-month period, API will cancel the provisional license for that formulation, and it will be removed from any associated products. If no active formulation remains for a product, API will cancel the product and notify the licensee that the API CK-4 or FA-4 Service Category in the API Service Symbol and the API Certification Mark shall no longer be displayed on the label of that product.


If you have questions, please contact EOLCS at