What is the oil capacity on a 2006 Mazda 3 2.0?

The oil capacity for a 2006 Mazda 3 with a 2.0-liter engine is approximately 4.5 quarts (or about 4.3 liters) when using a standard oil filter. If you're using a larger oil filter, the capacity may increase slightly. Always refer to the owner's manual for the most accurate specifications and recommendations.