API starburst and donut

[JNG]

If an oil claims to "meet or exceed ILSAC GF-5" yet only has the API donut and not the starburst symbol, does this mean that it has not officially been tested to meet ILSAC GF-5? If so what about the manufacturer engine warranty if the manufacturer requires the oil to meet ILSAC GF-5?

Go easy on me if this is a stupid question. I'm trying to learn.

 

[mk378]

There is no requirement to put both marks on a container of approved oil. (Or either mark for that matter.)

A donut indicating "API Service SN" and "Resource Conserving" means that the oil also meets GF-5.

 

[talest]

I do not believe I have ever seen the Energy Conserving now Resource Conserving API Starburst on an oil above 30-grade.

 

[dave1251]

Originally Posted by talest
I do not believe I have ever seen the Energy Conserving now Resource Conserving API Starburst on an oil above 30-grade.



It can't make it because the Fuel efficiency is based on a 39 grade.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.api.org/products-and-services/engine-oil&ved=2ahUKEwiWj7Xtj5riAhVOI6wKHWS3AMMQFjABegQIBxAC&usg=AOvVaw3B0hVdOYD2gsWG2yZ6w_lG&cshid=1557806292450