Installed a few months back......
On a 2006 F150
Use to have tranny temps between 150-165*f while cruising the highway.......
Now they are 145-155*f......
But in town driving/city.....stayed about the same...approx 170-175*f.
Towing I have not seen anything over 185*f.....that was pulling a 5k load.
Reminder that ambient temps do play apart in tranny temps also and we had a relatively cool to mild summer up here with no temps getting over 95*f.
Peace!
PS
Yes there is a cheby in the garage and its not mine....its the wifes.