I spoke with my older brother earlier tonight. Before he opened his own business in '02, he was a master mechanic at a mega-ferd dealer, and previously spent 10+ yrs on their SVT, hand-building motors cradle-to-grave. They were a John Force NHRA sponsor at the time as well. They were also a "Dodge, Chrysler, Plymouth, Jeep" conglomerate megaplex. I ordered my '00 Dakota R/T SBRC from them while I was stationed in Korea. Story for another day.
He said his dealership always stuck with motorcraft filters and oils except for "synthetics". Remember, in the early 2000s, synthetics' cost-benefit worthiness was a huge debate and a hard sell to the commoner. M1 was the oil they stuck to [and reserved for] SVT vehicles. The rest were [good] motorcraft dino or [better] syn blend, in dealer speak. He also mentioned that it was the dealership owner's choice and that Ford didn't hold it against him at all to run whatever oils he felt were prudent to support his business.
On the "Dodge" side, they literally ran what their supplier would sell the cheapest per quarter. When they were running 1/4 or less in their bulk barrels, the parts douche would order whatever the least expensive oil was in each grade at the time and that is what every vehicle would get. Mopar filters were the "premium" and pure white, unbranded filters were the norm. Yes, they sold and serviced Vipers as well. Scary.
This was 16+ years ago. I don't know how close this is to being accurate in dealerships today. The point is, consider what your dealership is really using for that "free" or "really cheap" oil change that "meets specs". Do you have the privilege of knowing for sure what is being dumped in your crank case? Chances are, you don't.
... ill look into this again. Dave must know my number on caller ID now. 
