Also, think of how many more cars manufacturers sell because customers have engine related issues outside of the warranty period that end up costing so much to repair that they just buy another car.
First, let me say that I'm not trying to be argumentative/tedious. I'm just playing devil's advocate. I would really like if there were an easy, $50 add-on that could improve the engine's health/lifespan. It's not that I don't want this to be true, it's just that something doesn't add up to me.
I definitely agree that planned obsolescence is a thing. One of the most egregious examples I'm aware of is Singer sewing machines. Singer made bulletproof cast-iron sewing machines until the 1960s when they moved their design/production to Japan (at a time when Japanese manufacturing wasn't known for quality). Singer had an upgrade program where you could trade in your cast-iron machine (probably handed down to you from your grandmother -- and still had 200 years of useful life left on it) for the new, space-age plastic ones (that lasted 3-4 years). The interesting part: Singer dealers who participated in this upgrade program had to sign a contract agreeing to take the surrendered machines out back and bust them up with a sledgehammer, ensuring those machines would never compete with Singers's new disposable products again. (That's obscene to me.).
So, I wouldn't scoff at your pessimism/cynicism about Hyundai's possible motives.
But... if Hyundai omitted the catch-can in favor of more frequent sales, why does Hyundai make a big deal about "top-tier" fuel (or require a bottle of additive per fillup)? They could have been silent about that. Or, recommend less additive with the hopes of engines fouling sooner(?).
@msinblu's post which I replied to is part of what doesn't add up for me, and ties into the above point. If Hyundai designed a great, braggable motor (as he said), why would they skimp on something cheap that would be so beneficial? Conversely, if they would do that (for predatory reasons), why would they put so much effort into designing such a good engine?
You make a good point about how people might not service/empty the catch can.
But, why couldn't Hyundai add a drain tube back into the engine? (Use a check valve so it doesn't drain until the engine's off. I.e., as long as there's vacuum in the crankcase breather line from which oil is being trapped, the checkvalve would seal the drain. But, when the vacuum is gone, the contents could drain back into the engine? The worst that could happen then is the checkvalve gets gunked up and has to be replaced occasionally, like the PCV valve does? If it's not replaced, you'd start having vacuum issues, check engine lights, etc?).
On the one hand: if the catch-can really catches enough oil that you have to dump it each oil change... it's hard to argue that it's
not beneficial. But, I still have trouble with why Hyundai would be ignorant of this improvement -- or, the
significance of the improvement -- especially when they put so much effort into creating such a great engine (as msinblu posits). To me, something doesn't entirely add up about that. It makes me think that the catch can isn't
that beneficial. Or, Hyundai's more predatory as you suggested (and, perhaps the engine isn't as superb as suggested.). It seems like a contradiction, that's all.
Sorry if I'm being nit-picky. I'm just thinking out loud. I'm not passionate on this topic. I may get a catch can. I'm not opposed to it. If it helps the engine's longevity, that would be great. Doesn't sound like it would hurt (unless I didn't dump it with each oil change.).