2013 DSP6 trans oil change.

[kodpkd]

I have the DSP6 trans with 66,000 miles. It has been into the dealer for the recall update 20,000 miles ago. It was driving ok but I could still feel a bit of shutter on occasion. I decided to change the trans oil. I used the correct Motorcraft oil. It took about 1.8 qtrs. I have driven the car a number of times since.
I really do think the trans shifts smoother now.

 

[kodpkd]

Well, after driving the car for a while the shutter is still there. It happens when I accelerate from a stop mostly in first and second.
The dealer doesn't want anything to do with it.