While in Phoenix over the winter I stopped at a Ford dealer for an oil change on my F150 Ecoboost. During check out, after the 90 minute job, they mumbled that I was due for a Brake System Flush, a Fu...
Remember, service facilities at dealerships are as much a profit center for that dealership as the sales department. Also remember, that the service writers work on commission of sales, and the technicians are only paid for the work they perform (which basically is commission), so they are highly motivated to encourage you to have additional work performed.