30 EUR per year? You can't even buy 2-3 liters of engine oil for that money, let alone brake oil, new tires (you change them every 50000km, right?), tire pressure sensors etc.

That 30 euro was for engine specific maintenance.

I spend 20 euro on the yearly oil change, including the crush washer. And about 10 euro on miscellaneous parts. A set of spark plugs were €9,28 last time.

Gear box doesn't need much. Oil gets changed when I do clutch, which isn't often. Just like how you don't need to change the differential or motor fluid on an EV motor often.

They are referring to 30 euros of engine maintenance only, so from your list only the oil (and filter) are relevant.

They mentioned engine and gearbox, so still you'd need at least gearbox oil change once in a while. Not to mention that they elegantly forgot clutch + flywheel which EVs don't have but are expensive as hell to change on ICEs (and you have to change them sooner or later).

Clutchplate is a 25 to 40 euro part and a day of my time. Needs to be replaced once every 200k kilometers. I have transverse engine, I guess it means engine out but that is a 45 minute job.

Can I ask what you drive?

There's a 3rd cost that you're sorta glossing over. The work you're doing (and the speed you're capable of doing it in) means you've had a non-negligible amount of experience. Depending on how fickle we're going to get, there's 4th costs of the tools you own allowing you to do that work. Perhaps other costs for your living situation allowing you to have a place to do such tasks.

I do my own maintenance work too. But I think it's foolish to gloss over those aspects of the work. They don't come for free.