I used be a firm believer in Mobil1 AFE or their products. Or used Pennzoil.
Recently I switched to Castrol Edge EP. Only because it was son rollback at Walmart.
Done some research and Ford appears to work with Castrol. There European vehicles use Castrol oil.
I found out Ford worked with Castrol to develope a 5W-20 for a specific WSS M2C-948 oil spec for 1.0L Ecoboost engine.
It's Apples to Oranges but the Ford GT cones factory filled with Castrol Edge oil in a 15W-20 in think.
I found in Asian markets in lesser developed countries Ford sells a Ford/Castrol Magnatek oil exclusive through dealerships.
Stumbling upon this I think Castrol Edge oil is going to become my new go to oil. Im sold.