Where is the oil filter on a 2008 Cadillac sts?

On a 2008 Cadillac STS, the oil filter is located on the engine's underside, towards the passenger side. To access it, you may need to lift the vehicle and remove the underbody shield if equipped. It's positioned near the oil pan, making it relatively accessible for oil changes. Always ensure the engine is cool and take proper safety precautions when working underneath the vehicle.