Where is the oil filter on a 2004 Oldsmobile Alero?

The oil filter on a 2004 Oldsmobile Alero is located on the passenger side (right side) of the engine, towards the front. It's usually fairly accessible, but you might need to work around some other components. A picture or diagram specific to the Alero's engine (either a 2.2L or a 3.4L V6) will help you pinpoint it precisely. You can often find these diagrams online by searching "2004 Oldsmobile Alero oil filter location diagram" along with your engine size.