Four Oil Changes (diesel) for $220 Worked Out Fine

You can usually find coupons on the Ram dealers individual sites for diesel oil changes for $75 dollars or less. I have been told that most dealers will except the others coupons. Anyway the other way is to to buy a new Ram and they give you 4 free oil changes to be used within 2 years. I know you might think that is an expensive oil change but what the heck.