Interesting "friend's mother's cousin's sister" story . . .
Since I live in Southeast Michigan, about every third person I talk to works for one of the Big 3 manufacturers.
Guy I know says his father-in-law worked at the Flatrock plant until just recently. The guy told him my story, to which the father-in-law says "I wish you would have asked me before he bought it."
Apparently, though the engines are made elsewhere, it's common knowledge around the plant that there are/were "problems" with some (not all) 2011 V-8, but Ford pushed them out anyway. He didn't specify what "problems," but I think I can guess. He further noted that the V-6s are fine.
He had heard about an additive being poured in the V-8s at the factory, but didn't know anything about it personally.
Things that make you go hmmmmmmmmm.
My attorney was open to me giving out his information to others with this same problem. If interested, PM me.