My 3 cylinder 1.0 litre Citroen takes exactly half that. Interesting.

Umm, no? A liter is slightly larger than a quart, so 10 quarts is about 9.5L.

For reference, did you mess this up yourself or did it require AI?

Liters are not SI units.

Metric isn't magic.

It's not ergnomic nor designed around the human body or everyday experiences.

It started arbitrary. Then was defined as in terms of the wavelength of radiation from krypton-86. (the meter was 1,650,763.73 wavelengths of that particular transition to match the original arbitrary metal bar)

Then they based it on the distance light travels in an arbitrary amount of time (1/299,792,458 of a second).

These were all decidedly non-human scale measurements with no actual scientific basis. Yes they used scientific references, but theyre all arbitrary references.