I know this isn’t 6.2/6.4 related so if not allowed please delete with my apologies.
Im not yet in any Ram forums but my daughter just bought new 2022 with the 5,7L. Have read tons of info about the lifters on these motors and wanted to ask advice from the fine folks in here. Is there anything I can do besides regular oil changes and routine maintenance to limit chances of having issues? I already told her to not sit with truck idling for long periods but sure she will ignore that lol.
What about a synthetic oil with added zinc like valvoline or an additive?
My habit with a new vehicle is to change the oil early and sort of often. For my Hellcat the oil was changed at around 500 miles, again at 2K miles (end of "break in") and then once more at 5K miles. Thereafter every 5K miles (or 6 months as called for by Dodge).
Oh the oil used is Pennzoil 0w-40. My advice is use the oil the factory calls for. Use no additives. Zinc (ZDDP) only works when the lack of oil and high pressure cause the ZDDP to form a glass like layer on the metal like the cam lobe. But the problem is the glass like layer breaks up rather quickly and as the particles of material fall away they carry with them base metal. This is wear and the loss of metal also affects the surface finish and can negatively affect lubrication.
I only owned the Hellcat for 33 months and 27.4K miles but I have done the above, or something close to it, for a number of new cars which I drove to 150K miles or beyond (317K miles) with no engine issues.
With my new Scat Pack I changed the oil at around (very roughly) 1500 miles. The oil on the dipstick didn't really start to go "dark" until then. The Hellcat oil on the dipstick was dark at around 500 miles. With only 7500 miles on the car since I bought it Nov 2020 it has had 3 more oil changes to adhere to the 6 month oil change schedule.
By habit I try to avoid idling the engine whenever possible. Not so much concerned about wear but gas mileage. But even with normal driving/use one would be surprised at how much private passenger vehicle engines idle. (I worked on automotive test equipment and this involved trip/data loggers which among other things tracked idle time.)
Just keep the oil reasonably fresh and use the right oil and take it easy on the engine until it is up to temperature and with a bit of luck the engine will be fine.