As an engineer in the auto
As an engineer in the auto industry for over 35 years reverse engineering factory parts to improve upon them for aftermarket replacements...I can say with certainty this list is a crock of horseshit. Yeah, there's some truth to it...just enough to seem believable and that's it. For instance. Ford 3v engines:. Cam phaser eliminator kit. $109.00 and $ 800-$1000 labor and it's fixed for good. Next! GM 3.6. The GM LF/LG v6 is actually one of the better engines! Every manufacturer has some issues, period. That v6 has many many examples living well into the 200,000 mile and beyond range.
Close coupled cats reversion into the combustion chamber. Uh, no. That issue was solved over 20 years ago in all manufactured vehicles. Thanks for the fake boogyman though.