MAHLE has long been manufacturing high-quality oil filters for many large automobile and engine manufacturers—and of course the same machines produce identical filters for the aftermarket. This high level of quality has clear advantages: it ensures reliable function, good engine protection, and satisfied customers. The diversity of types is constantly increasing, however, as new engine architectures allow less and less space in the engine bay. Areas of application range from petrol and diesel engines for passenger cars and commercial vehicles to motorcycles and small engines. Because optimal lubrication of the bearings is extremely critical in all of these engines, all vehicle manufacturers require that oil filters be changed regularly.