Most shops that do oil changes do not, in my experience, put the details regarding the brand of filter and oil they use on the receipt. Most of their customers...the average joe..don't care about such mundane details. My mechanic uses Champ filters and Citgo 5W-30 oil. I bet that I'm one of a small group of his customers that knows that (not that he keeps it a big secret or anything..I just asked one day). To the average joe (of the sort that doesn't do their own oil changes), I suspect that an oil change is an oil change and the parts used don't really matter.