Thanks for the response. I was thinking it wasn't something drastically wrong I was completely confused as to why an oil change would reduce clutch chatter, I appreciate the explanation.
From what I've seen and read these engines are tanks and I do a decent job of maintaining it, my brother has around 300,000 miles on his and he doesn't do a good job of maintaining his at all. (When I'd change his oil he'd usually only have 2 quarts in his sump.
My car has a 4 qt sump so,
2 qts amsoil + 2 qts RP + 2 qts Rotella = 150%