Oil capacity in liters for 2006 Mazda 2.3 liter?

The oil capacity for a 2006 Mazda with a 2.3-liter engine is approximately 4.5 quarts, which is about 4.3 liters when using a standard filter. If you are changing the oil without replacing the filter, the capacity is slightly less, around 4.0 quarts or 3.8 liters. Always consult the owner's manual for the most accurate specifications for your vehicle.