[AeroModder]

Definitely change it. There's a magnet near the filter that'll get gunk built up on it, and you should clean it once in a while. Ignoring a problem and hoping it goes away is the reason that perfectly good cars die an early death.

I changed my fluid when I got the car in August 2009, and changed it again last month. Just remember, there's a lot that stays in the torque converter and pump, so you need to drain/fill a few times to get most of the old fluid out. I changed it again last month and added 4 qts of synthetic, and it shifts a lot smoother now.