Engine oil is critical for your engine and all of it's moving parts and bearings, as it keeps everything lubricated. Without oil, there would be metal-to-metal contact, resulting in engine damage. Oil filters are designed to remove contaminants from the oil in order to trap all the particles. The engine oil filter body/housing is where the oil filter sits in your Mazda5's engine.
Protects your Mazda5's engine and the moving parts