What is the oil capacity 2000 Mazda protege 1.6 liter?

The oil capacity for a 2000 Mazda Protege with a 1.6 Litre engine is 2.9 litres with an oil filter change ........... it is 2.7 without an oil filter change but who in their right mind would change an engine's oil without changing the filter is beyond me ??!!