T6 5w-40 has 2000ppm calcium and no magnesium in its formula which I would not use in an lspi prone engine like that. If that engine wasn't lspi prone i'd use it. I use diesel oil in my gas engines but they're not lspi prone.
I'd keep using that oil for the vehicle you bought it for and buy a 0/5w-40 euro oil with an sp rating for the ecoboost instead of standard 5w-30. If you no longer have that vehicle and have this oil taking space at mix it with 3qts of regular 30 grade and the 2-3 remaining quarts of that 5w-40 to dilute it with.