Rust aside, I just noticed that it looks like my rear differential is seeping oil. There is no puddle, so I'm wondering what you guys think.

Only thing I can think of is that my last oil change at the dealership, or the tranny flash for the hard shift. Neither should have cracked it open for service.

Any ideas?

 

it does look like a seeping leak.. maybe worth getting the dealer to reseal it...

 

Just seems odd. These diffs are supposed to be sealed for 100k miles.

What would cause a leak like that?

 

Mine did this a very little at the corner but yours just seems excessive. They should definitely take a look at that.

 

Mine has done the same thing since a week after purchase.
I can't take it in for service because they want it for 1-2 days to re-seal it and said no one qualified works on Saturdays. They threatened to void the warranty on both diffs if I reseal it myself... So I'll just top it off until the warranty runs out.