Very interesting... FWIW, when I used to mess around with additives, lucas was one of the only ones that appealed to my "butt dyno", fwiw...
Not saying it did anything, certainly no idea about cleaning... But it did create a feel somehow that differed. In two different 4 cyl vehicles.
But this could be the same or vastly different. If WPP gives an MSDS that shows a dose of PEA, who knows, it could be a good alternative for the tcw3 crowd...