With synthetic media filters often containing fiberglass, I started wondering about media shedding into the oil.
I did a quick test with some Fram filters. I attached a vacuum to the outlet of the filters with a ~1 psi differential and a t-shirt to catch debris. Results were interesting, and I would be very curious to see another test done with a differential closer to the bypass pressure, a better material to catch debris, and better imaging.
Anyway, here are some pictures of what I found. There were more small pieces than large, but they were harder to show with my phone looking into my cheap microscope. I'm guessing most of what is being seen is fiberglass or other media material, except that orange blob is probably from the ADBV.
I did a quick test with some Fram filters. I attached a vacuum to the outlet of the filters with a ~1 psi differential and a t-shirt to catch debris. Results were interesting, and I would be very curious to see another test done with a differential closer to the bypass pressure, a better material to catch debris, and better imaging.
Anyway, here are some pictures of what I found. There were more small pieces than large, but they were harder to show with my phone looking into my cheap microscope. I'm guessing most of what is being seen is fiberglass or other media material, except that orange blob is probably from the ADBV.