The manual that came with my unit clearly calls for 250ml of 75w140 for the rear diff. I’m changing all fluids today and noticed that "250ml 75w90" is stamped on the rear diff, just above the fill bolt. Looking at other posts, everyone says to use 75w140 in the rear (75w140 is also used in the trans) and that’s what I’m going to do.

Anyone know why the manual says one thing but the diff is stamped, telling you to use something different?