Originally Posted By: 853okg
Well...apparently you BOTH know. How long has the magnetic drain plug existed? Longer than all of us, yes? One person asserts that they did not hurt any of the engines in which they were installed (likely only statistically, and not absolutely true) and you (as good as) concur then state that "nobody knows." Huh? That's called empirical evidence. It's the primary way we learn things.
No it isn't. Its called an unsupported assertion. Locally its known as "Nothing blew up".
Originally Posted By: Ducked
I have one. I also have a magnetic dipstick which I think makes a whole lot more sense.
That must be why they don't, AFAIK, exist, and I had to make it myself.
Originally Posted By: 853okg
Wait, what? A magnetic dipstick "makes much more sense" than a magnetic drain plug (to you) therefore it does not exist? How does that follow? Forget the obvious (a magnetic dipstick makes much LESS sense, because, by design, you access it much more frequently than a drain plug, and you want to be able to do so quickly, i.e. without having to remove tiny bits of metal). Let's assume you're right and a magnetic dipstick makes as much sense as the intermittent windshield wiper or the Post-It note. I genuinely have no idea if you're trying to make a point (or what it is) or just be contrary. About all I can glean from your post is that there is always some level of uncertainty in the universe.
Then you're easily confused by thinking outside of your (or the) box.
I'm not sure I can fix that, but I can re-state and/or expand on some of the bleeding obvious for you if that'll help. Life is too short to address ALL the fallacies in your original post
A magnetic dipstick makes a lot more sense (to me, obviously) since it gives you on-demand access to whatever diagnostic information the magnet provides. A magnetic drain plug...er...doesn't, unless you want to drain your oil every time you fancy seeing what's on it.
IF the metal removed is a significant benefit, which is open to doubt, a dipstick removes it. A drain plug..er..doesn't. It leaves it in place and magnetises it, with the possibility of it becoming detached.
I said a magnetic dipstick doesn't AFAIK exist (as a commercial product is implied, since I made one) since AFAIK they don't exist as a commercial product (for cars, I think they do for motorcycles).
That should be quite difficult to misunderstand, but if you really try hard it can apparently be done.