Ah that sucks. He does seem like a genuinely nice guy, but he's definitely a bit of a crack pot.
I think I got into his channel for a couple of weeks until it became obvious his content boiled down to "Toyota good! Only Toyota!" and some advice that sounded like automotive snake oil even to my mechanically retarded mind. I think the worst one was when he encouraged people to do "Italian tune up's" in their 4-cylinder daily drivers, which usually means running your car at really high rpms to burn off excess carbon. That's something that only works in much older vehicles and some performance vehicles (supposedly diesels as well idk).
For a daily driver, you're just adding wear to your engine and possibly causing especially retarded people to potentially blow their engine redlining in their driveway. And the benefit? You might knock some carbon loose from your spark plugs, which you could replace for $100 at most if you use OEM plugs.
