I just changed the oil on my FFH 2016. This is the first time I did it at 40K. I brought it to the dealer for the last 3 times.
The oil drain plug does not have crush washer but a black rubber gasket. I bought some aftermarket rubber gaskets but they did not fit well so I decided to reuse the old one.
My concern is that if the rubber gasket should be replaced every oil change. I don't even know if the dealership replaced it last time. I will have to purchase the OEM rubber gaskets from Ford for the next oil change.
Thank you for your input.