I echo checking for manufacturer's reccomendations.
Mobile1 should be fine if you get the right stuff.
I just went and bought a 5 gallon bucket of Gl5 (?...long day) and changed out everything. Took 3 gallons of it!
5 gal was cheaper than buying by the quart! I got more lube for much less. You may look into something similar if your trans and t-case need changing too.