i think pus had a slight amount of oil mixed in as well.
if you let it sit long enough you can see some of the oil seperate from the lube.
i could be wrong though
^ that wouldn't surprise me as I have to shake up my old thing of PUS before use, otherwise it's just watery clear **** that comes out. Very unlike Dow33.
Evil pus isn't really anything special. If you had a tub of it sitting around, theres no reason to not use it, but i dont know if i'd go out and buy it.
just look for some Sl33k lube or regular dow 33. both of those are easier to find.