That's what I figured. If they don't correlate their data by using a standard oil change interval, that "universal standard" means absolutely nothing.
You could contact them directly and see what they say also. I've had really good experience with getting a response from them. On my 9000mi change they actually called my phone at 8am to check and see what was wrong with my motor, it was cuz I had gone mudding and sucked in a bunch of dirt, but it was still nice to know that they cared
Got the most recent one up. I think I got screwed by the Ford dealership and they replaced my oil with motorcrap 5w-20 when they replaced my power steering pump. It had a Motorcraft filter on it when I got it back and I only run K&N filters.