I've seen the pictures in the oil filters thread. Not surprised there is one.... I've been in forums where Castrol 0w40 has its own forum section. Never ever used Amsoil or Redline either for example and here I'm 48 years later with perhaps having owned 20 vehicles and racked over 2 million miles combined still reading how Amsoil or Redline are awesome oils and I don't doubt it... I've posted in the main oil thread as well.
Nothing i read is changing what my truck gets for fluids or filters unless you want to finance it for free?

Im cured from motor oil threads and oil filters threads. I only buy factory oil filters I'm sure the high end are better just cause the forum says so. My truck doesn't care so what can I say?