I believe it was the ESP, it had a green label and they said it was best for turbocharged engines. The only Mobile 1 I found that met the Ford spec was the Advanced Fuel Economy. This is in the 0W30, maybe it is different in 5W30. I will find out in the spring.
Before making a blanket statement about mobile 1 oil. I would go to Mobile's interactive app and download my truck's information see what oil they recommend and then check the specifications.
Mobile1 ESP is a Euro spec oil, and falls in the Euro specs classification (ACEA), which will generally cross-reference to API. Mobile1 ESP is probably the highest quality oil Mobil makes, there is a lengthy discussion with lots of oil analysis data over on the Bronco forum, and the 0w-30 ESP has had superior analysis results over other main stream synthetic oils. I use it in both my Maverick & Bronco.
Wouldn't Mobile ESP meet Ford's WSS-M2C961-A1 for 5W30, or WSS-M2C963-A1 for 0W30 specifications?
As an ACEA C2 spec, it likely exceeds the Ford spec., but would not be subject to those standards. It would cross-reference to meet/exceed an API SP spec.
I looked at the back of the oil jug and it does specify WSS-M2C 961-A1 for both their regular and extended service Mobil-1 full synthetic.
He would walk. You heard what Rufus said.
As it was intended to be actually!
