I consulted the PQIA site for their analysis of various oils (hundreds, actually, since 2009) and was only mildly surprised to see rows of red dots indicating WARNING!. I always wondered what was in all those luridly colored pus yellow, blood red, and baby vomit green-labeled bottles of oil at some truck stops, "mom and pop" gas stations, and small grocery store shelves. Now I know.
For the intrepid investigator, the PQIA site's list of passenger car motor oil analysis offers quite a few more scaaaaaaaaary, sanity-checking oils eager to send our engines to the 644th layer of the Abyss.