I am assuming the OP is running a 6.4L Hemi on the OEM factory oil fill which should be some formulation of Pennzoil 0W-40.
A member or two on this very forum have made comments regarding engine noises and even CEL codes when running just shy of 5000 miles on the original factory fill. So I am curious to know how many miles do you currently have while running the factory supplied oil?
I like with many folks run SRT branded Pennzoil Ultra in 0W-40 in our subsequent engine oil changes. However see my other post on Pennzoil Ultra Platinum w/ Pureplust Technology
regarding the newer replacement Pennzoil 0W-40 that will be the next factory recommended oil that I will plan on running once I use up my current stash of "SRT" oil.
Knowing that "Hemi Tick" might be an issue for me in the future, I have kept an eye on this product that I was thinking of using.
Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
I would probably go for an oil change with either the Pennzoil Ultra "SRT" or even better, the "Ultra Platinum" oil and see if that takes care of your issue and go from there.