First of all the recommended interval for ATX service is 30,000 miles.
It MUST be serviced by your FORD Dealer.
They are the only ones with the correct ATX Flushing equipment to take care of this procedure.
Replacing 4 quarts every 3,000 miles doesn't do diddly.
There are approx 10.5 quarts of fluid in your ATX.
Flushing insures that ALL of the fluid is removed and replaced with fresh fluid.
Flushing should also be done every 15,000 miles.
If you wait for every 30,000 miles you will have problems.
Take it from me and search for my ATX posts if you want to read my story.
If you want more info on the CD4E, go to
Trans Online .