I just did mine about a week ago. I had access to a lift, so it was pretty easy. When I pulled the fill plug at first, some fluid started to drain out... so I'm guessing it was a little over full from the factory. So when I filled it, I filled it until it started to drain, and plugged it up. Surprisingly, after 75k miles, the fluid didn't look that bad. It is honey color normally, and it was like dark honey color. I was expecting black lol. But it wasn't that expensive, cost me less than 20 bucks. You shoudln't need to flush your fluid... most of the flushing is just people ripping you off. I do notice better shifting, however.