Ford F-350 6.7L turbo diesel requires ~13 quarts to change the oil. No catch pan I have will do the trick even if I wanted to. I took my old F-250 to the dealer and it was about $98 total each time.
I haven't changed oil in the F-350 yet but suspect it will be about the same at the dealer and I can do without the hassle. I let them do the fuel filters too but we only average 5k a year so it isn't needed often.
The F-350 has the oil minder system to tell when to change the oil...but it will get changed before the new camping season hits as the owner's manual says to run 10W-40 if towing regularly. If I had noticed that sooner, I would have had the dealer throw in 1 free oil change as I bought the truck to tow and they knew that.
So far I just chalk it all up to the cost of having fun camping!