Originally Posted by triclunderclops
I wouldn't call it pour, but definitely trickle. I would recommend changing the fluid with Ford synthetic fluid. Doesn't the service guide call for something crazy like gear oil every 10-15k miles? Good opportunity to change it regardless.
I believe you referring to the alternative:
Using Mobil-1 SYN 15W50 in place of the OE/Motorcraft SYN Manual Trans Fluid
^^^That's where you would have to change every 10 or 15 thousand miles depending on driving conditions^^^