This stuff is well in the category of magic potions for engines. Some will accept it does something. Others won't. One can does a standard car engine and is supposed to last 50,000 km's. Gets good reviews (though these days there are so many YouTubers reviewing stuff they've been given it's hard to know who to trust). There's also the 'I spent $XX on this stuff it must be good (or I'm a gullible fool)' factor.
Available at a few places for a similar price. It's the shipping that makes the difference. Buy 2 at Amazon and it's free shipping.
I have an EV and use this regularly in it.
It is truely amazing stuff.
It adds more HP and torques. Decreases fuel consumption and I'm happy that I'm doing my bit to reduce climate warming.