The reason I ask is because I haven't changed mine yet. My mechanic told me he would do it once I hit 100k. So now I'm here at 100k, but he is not just going to flush it. He will do a complete tranny oil change. Which is a lot longer of a process and a little more expensive on my pocket. But I intend to keep the X for a very long time. My wife says that I have to drive it till it falls apart. If she only knew I'm in the process of picking up a 650 by Christmas. She is going to flip. Thanks again Tomas for your input. I'll let everyone know how it goes...