It seems to be a common theme in posts that certain engines, do well with certain oils. I don't know if that's true or not. I was just curious if someone had ever compiled a database of UOA's and looked for patterns- the idea being that if you asked "what is the best oil for my engine?" they could provide an answer based on UOA results for a specific engine type. I realize there are lots of uncontrolled variables (climate, driving style, etc) but IF certain engines do best with certain oils, it seems likely that would be clear with a large enough sample size.