HI all, 
  
I have done a search around here and have read that the EDGE ATF should be changed around 150k miles, (30k miles for heavy duty towing).  I recently took my 2010 EDGE with roughly 22k miles on it to the dealer for an oil change.  Mind you, I have gotten oil changes every 6 months and necessary maintenance and their specified intervals.  When the dealer gave my car back they told me I needed to change the transmission cooler line and change the ATF.   
  
Now, am I being paranoid, or does this seem right?  I know the vehicle is roughly 6 years old, but it only has 22k miles and when I checked the ATF it still has a nice clear red to it.  Should I be paranoid?