I have owned several F-150's with the AOD type transmission. They all required Mercon V fluid. When I lived in FL. I had several Ford tech friends. 2 of them worked at Gator Ford, 1 worked at Brandon Ford, and they all were trained to work on these transmissions.. I had wanted to use Mobil 1 ATF fluid in my 97 F150's 4R70W trans. They ALL 3 said DON'T! So, being they were Ford techs that were familiar with this transmission, I listened to them. They said the 3 name brands of Mercon V that meet Ford specs are;
Motorcraft, Castrol, and Super Tech. These are the only Mercon V fluids I have ever used in my AOD type transmissions.