Where is the oil filter located on a 2004 Mazda 6?

On a 2004 Mazda 6, the oil filter is located on the underside of the engine, near the oil pan. It is typically found on the driver's side, towards the front of the engine. You may need to access it from underneath the vehicle for easier removal and installation. Always ensure the engine is cool and safely elevated before attempting to change the oil filter.