Firewall Forward: Oil Filter Cutting and Analysis


KITPLANES editor at large and experienced engine builder Paul Dye walks you through the process of cutting open the oil filter and examining the contents. What should you be looking for? Should you do oil analysis? Your questions will be answered.

This series is sponsored by Tempest Aero Group.

View the complete list of published Firewall Forward videos.


  1. Good video!

    I also like to place the oil filter on top of a plastic disposable drinking cup for 24-48 hours before cutting it open. This makes a tidier procedure by draining a significant amount of the oil out of the filter, prior to cutting it open.


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