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Based on that + the sound...looks to be a particularly egregious exhaust leak. Cracked exhaust manifolds and broken bolts are fairly common on these trucks.

Yes. Does it quiet down after a few minutes?

IIRC the most common is close to the rear banks but it can happen anywhere on the manifold.

The other (very small) possibility is one or more of your lifters have complete leakdown....which corrects when the engine restarts. This is a normal condition IF your truck has been sitting for a long period, but if you use the truck daily they should not be leaking down to the point you hear...

What rims you got? And what are you looking for?

A TBN analysis will tell you if your oil is corrosive or not.

If you have ticking that goes away as the engine warms you have an exhaust leak (either a cracked manifold or broken bolt). That is not normal. The only "normal" HEMI tick are the injectors, and that's always audible.

It happens in non-MDS engines as well. My suspicion is inconsistent hardening in the camshaft manufacturing process, but like most others out there I have no firm data. I'd need to accumulate a large sample.

Had a Hyundai that I DIY'd oil changes on (recorded with my own records + receipts) that was initially denied a warranty replacement engine. I had to get a lawyer involved and 4 months later I had a new engine. Also, **** Hyundai

Quality production has an exponential cost factor. Companies make more money by making a 99% product and warrantying 1% of them rather than making something that will never need a warranty. (I pulled these figures out of my ***, in reality it can be any % but I just wanted to keep it simple).

These days you're not necessarily paying for quality, but rather customer service. I had a similar experience with my Borla exhaust, initial fitment was terrible but they fixed no questions asked.

In this wonky *** market...sure, definitely possible.

They do, but if you wanna give it a good flush (and remove the pulverized metal on the magnet) you have to remove the cover. Plus I like to look for any signs of premature wear while I'm under there.

I much prefer Ford's approach to styling over GM. Hopefully Stellantis is taking notes from the former rather than the latter.

Just an FYI, you can use a gasket rather than rtv. Much easier, no set up time, and don't have to remove sealant when you change it the next time. I use these with no issues: https://www.amazon.com/dp/B01LYEAPL0?ref_=cm_sw_r_cp_ud_dp_CS7GWC7N5DPA3Y41VNSC

Semi-synthetic oil is not required to maintain the warranty. You just need to meet the MS 6395 spec, and straight conventional Pennzoil 5w-20 does that.

There are several different causes to this issue. After a month without my truck and the dealer failing to fix the issue I dug into myself. I had holes in the sealant at the bottom of the A-Pillar, and I filled them with butyl. No whistle anymore. See my old post about it...

Mine does this as well, but my entire dash has been out before...wonder if they goofed something up when they put it back together.

Don't put any additives in...then if it chatters add a bottle of friction modifier.