Oh wow. That’s crazy, has anyone had any problems driving in L9?
I think you are overly paranoid....
If your 21 has made it this far, you are likelly not part of the lifter club...
The lifter issue is likely about a 1% problem...was worse in a certain range of
engine manufacture dates in early-mid 2021...and GM issued a TSB for these engines. There were a few more, but have't seen a ton of them lately here on the forum.
6.2L bearings...different story, but even that is a low percentage issue...compared to the quantity of these produced....
And, as others have said, no DFM delete option available on these engines (the ECM is too locked down). Drive and enjoy...use the proper fuel, and change oil often.
