Chosen Solution
I have a top loading LG washer. It is only a few years old. it is the kind with no agitator. There are small black bits of smear-able substance, almost greasy in nature when the wash is finished. I’ve investigated this, including calling the manufacturer. The best information I got was using a tub wash. I did that but the problem keep coming back after one week or so. There is no filter port on the front. Moving the washer is difficult due to space to look in the back. So, before that effort - maybe someone else has experience with this?
The dark spots are a result of re-deposits of dirt and oil removed and put into suspension by the detergent, then precipitated out. This is made worse by insufficient detergent, by cooling, and by soaking periods where the temperature drops and oily precipitates form on surfaces. This can also be cause by a failing transmission.
