At work we use Motorcraft synthetic blend (bulk), and if the vehicle has an extended warranty Motorcraft full synthetic is used that is in regular retail bottles.
Since the cost per quart is quite a bit higher for full, than blend, this tells me Ford believes in the full synthetic investment.
1995 Thunderbird LX 4.6l 97 Headlamps/Hood All Red Tails Muffler/Resonator Delete
2004 Tahoe 5.3 4x4
2008 Acadia Limited AWD
...still looking for a clean, low mileage, rust free 96/97 Thunderbird 4.6