Put this in this weekend and my fluid seemed pretty clean that came out, but I bought the car at a dealer, so I don't know if maybe it had been changed. In any case, feels very silky and would definitely recommend to anyone thinking of doing it. Didn't have any issues with it when I changed it, but can notice improved shifting to first gear. Seems to just slip in rather than having to hold it there while pressing lightly to get everything to line up. Positive change in my book!