On my '15 F350, it gelled up on me and I had no clue what happened at 1st. Dealer couldn't get me in, but their sister dealer should and right around the corner from where I was at. Truck limited to 25 mph. Got truck to them/inside and they come back telling me it gelled up and would be like 350-400 bucks. Asked if filters were made of gold ($150) and no way was I paying that kind of dough. Told them I'll pay them for their time and be on my way. Surprisingly, it thawed out while inside and zipped home w/o a hitch. Called NAPA up and got a filter for 90 bucks. Discovered later I can get Motorcraft filters online for 55 bucks. Granted this is fuel filters I'm talking about.
As for dealer,I asked about oil changes and believe I was quoted 2-300 bucks. Like some others, can do it myself for under 150 and a lil time. Have a couple buckets/pails I put used oil in and local place takes it for their waste oil furnace.