I'd like to see those posts. In any case, it's Redline's formulation that kills the tick, not the weight. The thick weight is better for the engine as a whole, especially when it gets hot or when towing in the summer.
The extra moly helps the tick.
I went to 5w-30 for one oil change and didn't notice any difference in MPG, tick, etc.
I'll stick with my PUP 5w-20 since I've got a MOPAR ESP through 2026. If the tick starts to become pronounced (more than a few seconds on cold startup) then I'll shell out the extra donuts for Redline. Looking at the cost to get some moly additive (ZDDP) it's about the same if not cheaper to just get it premixed in Redline.
Even though there's truth in everything you also have to take things with a grain of salt. What the engineers recommend is not always what makes it to print. There are a lot of fingers in the pie and it doesn't always look the same as the initial picture when it hits the shelf (how many concept vehicles went to mass production unchanged). It may not be the end all/be all that's in the owner's manual but
FCA Stellantis has to honor it if they wrote it.
My last truck was an older Ford diesel that came out in the pre-emissions days and when Low Sulfur Diesel fuel was the standard. Fast forward a few years and Big Brother mandates Ultra Low Sulfur Diesel dropping the sulfur content from 500ppb to 15 ppb. No big deal except sulfur provides lubricity to diesel engines and Ford came out and said "it's okay, your engine is fine". How can it be fine if I just lost over 95% of the lubricating properties of my fuel that the engineers were counting on??!?!! Add to that the transmission fluid was discontinued and what was taboo prior to that (Ford said don't use XXX fluid ever in your transmission) was okay to use when "the good stuff" was no longer available.
I knew one of the engineers that designed transmissions for Ford and he said that the specs they put out did not always make it to production (or print) after it ran through the corporate filters.