Cathedral Cub, you are correct. I used to have a 2010 with 5.3 that worked flawlessly, did not burn oil, with 145000 kms until some inexperienced driver pulled out in front of me and you can figure out the rest from there. I now own a 2015 6.2 on which I have done the full delete. I had used the disabler for a while also but did not feel that would cure the issue with the AFM lifters. The problem with the lifters is there is a spring attached to bottom of the four AFM lifters that can seize up or down which can and have bent or broken push rods.

Yeah, definitely the safer way to go if you can afford it (or do it yourself)

I still would love to see documented cases of AFM failures and AFM high durability compared to oil change intervals. Over the years, I've owned and seen many engines with a reputation for failures that have some relation to oil quality, and seen them have no oil issues well past 200,000 miles. Many of them come from that mid/late 20xx era where most of the big manufacturers started heavily pushing extended oil change intervals. Many owners push those intervals much further, and of course don't often talk about it. Are those the ones that are failing? Lots of speculation, seldom is there any real documentation, but then when a failure occurs, there is little or no mention of this factor . . . I believe often this is because it is not easily provable.

Documentation of oil changes and all services would be the proof in the pudding. Yes I did the work myself following Danny Johnson'* Garage video, although it didn't go quite as well as his did I got it done and works good. It'* rated as a 30 hr job times C125.00/hr. Had to buy a few tools and spent close to C4000.00 total on parts. Had to walk or pedal my bike for a mile or so to work for a month but still cheaper.

Wow!

Well now your car is in better shape, and so are you!