Rear Differential and Transmission Fluid

Hi all,

New member just bought a 2012 Acura TL SH-AWD automatic. I have been trying to search for an alternate rear dff and transmission fluid on this site as well as google, but I am not coming up with anything other than Acura's DFSP or Honda's own fluids. Can I use anything else other than those two? Or would you recommend sticking to them?

Thanks!