Oil Filter Element 2605530160 Spin On Cartridge For Compressor Oil Change Service

     Oil and filter share one circuit, and each one sets the service life of the other. Replacing one while leaving the other in place means the fresh half is made to carry the old half's burden, and the result is that both fall short of what they were designed for.

    Changing the oil and keeping the old element is the more common mistake. The element that stays behind holds the contamination it collected over the last cycle, along with the spent remains of the additives that were in the oil it ran on. Fresh oil arrives with its dispersant chemistry still active, and that chemistry does exactly what it is meant to do: it lifts deposits off the surfaces they settled on and carries them in suspension.