Ford's transfer care service interval

[buck91]

Any thoughts on the 150,000 mile service interval on newer F150's transfer case? I know they use their special transfer case fluid now, but I really doubt its anything more than dex/merc anyways. At this time my plan is to do the ATF, both difs and t-case fluids at around 100,000 miles (since they are all spec'd for 150k I figure this is a good compromise).

 

[CHARLIEBRONSON21]

InB4 this gets all blown out of proportion. Change it. It won't hurt. Then you'll have everything on the same level, new fluids.

 

[UNC151]

Here are my used oil analysis on the transfer case fluid in my 2010 (which is probably identical to your 2011). I had it serviced by Ford the first time and they installed Mercon V in it instead of XL-12. It worked fine and I have used my 4x4 as a 4x4 a lot. XL-12 went in the last time though as I thought it prudent to install what the OEM specified despite the fact the Ford dealer did not.