I just got a new Message in my trip computer (Maintanace required - Service B)
The funny thing is that it came on right after I changed the oil. I had the oil change done at midas and brought my own oil (motorcraft 5w20). I didn't have the oil change done at the dealer because I wanted to use the semi sythetic.

I am guessing that this is the 15K mi Maintance reminder.

I called the dealer and they said that this service includes an oil change and some other work totaling around $170

Is this service worth it? and what does it include?

 

I think the maintenance requirements are in your owner's manual... I don't remember off the top of my head.