well the fix is not a slightly thicker oil, that's a band aid at best, just gm trying to not have to fess up to their mistake
this thread is specifically for 6.2's failing.
The best option is to not buy one, otherwise you asked for it.
That's why we went with a 2025 F150 Lariat with the 5.0 Coyote and 6.5 foot bed. We were about to pull the trigger on a GMC Sierra 1500 SLT with the 6.2 but multiple poor GMC dealership experiences where their numbers didn't add up, we ended up ordering our F150 via Granger Ford.
In retrospect, I'm glad we avoided that 6.2 mess.
I really don't see a need for the complexity of a turbodiesel in a 1/2 ton application and I'm willing to bet that a tried and true NA V8 will be no more problematic as well as easier to repair/service in the future.