Napa Gold is one of the best and what I use on my 496. I'm sold on the rotella T 15/40 or even the lucas oils 20/50.

I've got 75lbs psi at cold idle and minimum of 35 psi what really warmed up.

2005 300C Hemi
2014 Ram ProMaster 2500

I Rekey, Repin old Chrysler locks and cut keys by code