I recently help my son buy his first truck it is a 2011 RAM 5.7 Hemi is calls for 5w20 on the cap and I found online it uses 7 quarts. I have read about and used several good oils I currently use Pennz ultra in my car, mobil in my suv and penzz platinum in my truck but my question is what are most people having the best success with in the hemi? I hear they are picky and have to use the 5w20 which I do want to use but what is the most popular oil being used by most? thanks
Arkansas Dave
Arkansas Dave