Originally Posted by Me_Hi
That's because they didn't use the cleanser! When I did my tranny oil flush, the specialized BMW Indy shop aka Nixon, put in a cleanser and let the car drive in D on the hoist for 10 minutes prior to replacing the fluid. The oil was black and a bit thick... No need to replace the tranny filter as it's magnetic. If you keep your car change the fluid! If you don't what are going to do?, replaced it with another unserviced tranny ? A new one will be 5k...
I would never use a cleanser in a transmission. Flush yes.
I would have changed the pan, that is where the filter is (and it is not magnetic).