This is Why Stop Leak Should be Banned

I'd got a bit further and say that, besides Stop Leak, MOST additives should be banned. But, of course, it's not against the law to be stupid so they have to sell it.

Snake oil....as long as you don't say anything that's can be proven a lie....some gullible and ignorant folks will fall for it. I remember "Slick 50" additive in the 80's....said it coated your engine and you could, magically, even run it without motor oil! (I guess you COULD run the engine until you couldn't....because you killed it!)

 

Maybe "high-mileage" oil too? I remember looking at a bottle, decades back, wondering if I should be using it, since our car was getting up there. Not sure what all is disclosed on the bottles these days, but I've read the difference in this type of oil is additives designed to swell gaskets, which "may" be the cause of oil consumption. It's best reserved for engines with bad oil consumsption, a last ditch effort, and once you start using it, you better stick with it, because switching back to regular oil the swollen gaskets, more worn than ever, will shrink, and oil consumption increases with a vengeance.

 

Yep, the marketing folks are busy! When people ask me what's the best motor oil, I just say, "Whatever you change out every 6-months" I'd rather be using recycled motor oil every 6-months in my vehicles over the best (Mobil One/Amsoil) every 12-months....no question about it.