doubt it, if something goes wrong in the tranny, most likely gonna get peices of metal or such. the tranny has alot of rubbnig gears which polishes off a black residue from the oil making your oil get black faster, not a sign of oil breadown tho dont confuse the two.
may i ask what oil you are using, are you fully draining the old oil using a warm engine and then draining?
may i ask what oil you are using, are you fully draining the old oil using a warm engine and then draining?