Yes-Here is what I believe -per GM's own statement that I linked you to the second chart is misinformation. And my own personal experience of changing out the Dex6 at 50,000 miles(25,000miles of that towing a 30 foot 5,500 pound travel trailer) and the fluid that came out looked as good as the day it went in. Granted-I didn't perform a UOA-but it looked real good. Not sure what these transmission temperature charts are selling-either new fluid or maintenance that is not needed.