Oh dang You’re right. That just seams like a lot of new diff fluid.

nope

15k? That is before the second oil change. Surely you are mistaken.

You likely don’t even need to get most of it done at all.

Yup, worked at a dealer back in the mid 00’s we did that to everyone. Sorry bro.

What are you even doing in a dealership talking to the sales person? Are you board? Go get a better hobby.