oil change on a class C rv with ford V10 engine

I used to do my oil changes, but that was 20 years ago. By the time I go go buy the supplies amd take the tiem to do it and then run the old oil back to the store, then I could of had it done. Camping World charges I think about $65 to do it. My local Ford dealership said $50. I'm getting it done this week at the Ford dealership. I'm not worried about saving a few bucks. If I were, then I wouldn't have an RV.