How much oil is required to change oil on a ryobi s430

I'd like an answer to that question also.
Exactly, how much oil does the X430 take?
... what is the capacity?

I do not need to know the oil type or that it is a 4 stroke and not a 2 stroke, thus no mix. I need to know the total oil capacity of the unit.

I cannot tell if it is full. If the unit is level, it reads one thing. If the oil reservoir top at the plug is to be level.