I have been searchin here and online. I recently bought a 2000 f-150 Larait 5.4 4x4 and am doing all new fluids as the sevice is questionable from the seller. I am seing Motorcraft XL-12 as needed but is discontinued by ford. Torqking says Mercon LV is the new approved fluid for them. Valvoline multi vehicle (TCF) full synthetic is also mentiond as a replacement. Anyone Know for sure if Mercon LV or Valvoline (TCF) is ok to use or should i keep looking for Motorcraft XL-12? Thanks for any information.

 

Mercon LV is what Ford specs for all transfer cases now. You might get lucky and find XL-12, but probably not.
Check out FordTechMakuloco on YouTube. He has a ton of great info.

 

Thanks! I'll check him out.

 

Ford part number XT-10-QLVC for the fluid.

 

Thanks, I just ordered 2 quarts.