Transfercase Fluid

I am in the process of changing all my liquids in my truck and just want to verify the fluid that I should be using in the transfercase. According to the specs I should be using 4.1 pints of automatic transmission fluid. I have already bought Mobile 1 ATF for this, but after reading nummerous posts about the FORD spec change for the transmission from Mercon to Mercon V I am not sure if I need a Mercon V rated fluid for the transfercase or if I need to find Mercon??? Is the Mobile 1 ATF fine for this? I searched, but it seems that posts were dated back to 2007.