Engine oil is critical for your rotary engine and all 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 to trap all the particles. The engine oil filter helps clear out any dirt in the oil too help protect your Mazda's rotary engine and the moving parts and bearings.
High quality OEM Mazda CX-9 oil filter
Filter protects engine components from oil contamination and particles
Remember to change to a new gasket to ensure a fresh and secure seal, after oil draining