I just did my first oil change on my 2019 Ranger at 4800 miles. I planned to install the Fumoto F107N valve along with the ADP-107 adapter per the Fumoto website. I have used the Fumoto valves on my other vehicles and they have been excellent with no concerns. Note that the other vehicles all used an aluminum crush washer with the OEM drain plug. The 2019 Ranger OEM drain plug does not use a crush washer but instead an embedded rubber style seal. The ADP-107 comes with a a gasket washer made of a composite fibre like material. After draining the oil, on installation of the adapter, it did not seem to torque up as I would expect. I'm doing this on my back with the truck not jacked up. On visual examination of the adapter installation, it appeared that the washer gasket did not look right. On removal of the adapter, I found the gasket washer damaged as shown below. The inner ID of the gasket washer appears to have been pressed into a counterbore concentric with the threads in the oil pan. I did not inspect the oil pan interface as I just reinstalled the OEM plug and would do a post mortem evaluation later to understand the issue. This is when I noted the deformation as shown. It still may have sealed the adapter but I did not find this an acceptable installation. An aluminum crush washer 12mm should address this concern in lieu of the supplied composite fibre gasket washer. That's probably what I will do on the next oil change. This is just a heads up. I did advise Fumoto of my findings. They offered me a 20% discount on the F107SX style valve but I believe the aluminum crush washer will work. Fumoto was very responsive. And for those thinking that I applied an over torque to the adapter, that's not the case. I am a licensed Aircraft Maintenance Engineer with 50+ years experience with endorsements up to the B787 and always do my own auto maintenance so I'm comfortable with my capabilities on complex machines including engines. Just a heads up to watch for if you decide to use the F107N valve.