Weh?

1.6 liters, usually 3.5 liters of oil
2.0 liters, around 3.75 liters of oil.

This varies per model and engine, but that's the general rule.

I don't know about 2.2 ltr - 4.0 ltr engines. Maybe someone else can help.

There is no general rule as to the oil capacity of engines depending on horsepower. For example, a 2.0 liter 4G63 Evo engine requires maybe 4 liters of oil, and produces the same power as a 5.7 liter V8, which would require more than 10 liters of oil. It really just depends on the size of the engine.