I donth think anyone really knows what is in it except for Mr. Lucas. I think one of the only things it has over the conventional Lucas is probably anti-foamants, seeing as it specifically is called out for the PowerStrokes. Most likely due to the high pressures present in the older models utilizing HEUI.
If it is similar to conventional Lucas it probably has no additives just a synthetic base oil. Why would anyone need evidence to not use lucas oil additives? If you're using a good oil in a well maintained engine there should be no use for an additive of any sort.
