All,
I recently purchased a 2016 Ram 2500 with the 6.4 liter Hemi.
I didn't do much investigation before I did, but I just learned from a local mechanic I need to buy a certain oil when doing oil changes?
Synthetic? He thought it was a 0w-40.
The dealer didn't tell me, that's usually something a salesman does not know.
Also, what is the preferred filter for this engine?
On my '06 Deisel I always used K&N filters with no issues - mainly for ease of installing with the 1" nut on the end.
I love the new truck btw, I would recommend one to everyone!!
Thanks in advance!!

Wally.