She may very well have received better service than at a jiffy lube. And how do you know she paid more ? Most dealerships offer competitive oil changes, sometimes for less than the jiffy-lube type places, to keep their customers coming in. I know "stealership" is a trendy name to use, but many times they are no more expensive than an independent, and offer better service. Obviously, just like in any industry, this is not true for all. Shop around.