Maintenance Matters

August 2017 Issue

Metal in the Oil Filter: Benign To Catastrophic

With few exceptions, an oil filter should be free of metal contaminants. Identifying the metal by type can help determine what part of the engine it came from.

In addition to oil lab analysis, we’ve always recommended cutting open the spin-on filter for physical analysis. If the engine is shedding certain metals, you could spot them in the filter, especially ones that have trap magnets.

To continue reading this entire article you must be a paid subscriber.

Subscribe to Aviation Consumer

Aviation Consumer is the independent online source for impartial and uncompromising evaluations of aircraft, avionics, accessories, equipment and more.

Already subscribe but haven't registered for all the benefits of the website? Click here.

Subscriber Log In

Forgot your password? Click Here.