[goatjacket]

Purchased my car with 3,400 miles last week and had no verification that Diff was changed out around 1,500 as so many suggest. Figured it was worth the $50 bucks in fluid to check it out. Sure enough, that stuff was nasty. You can see the smear I pulled off sitting to the left of the plug. Am I correct this is probably the initial fluid change? Not sure how quick this stuff turns dark. The gunk on the drain plug was pretty thick sludge. I was also surprised no fluid came out of the fill port, perhaps it wasn't topped off as much as people say. Regardless I used some extra to flush it out and nice fresh fluid in and I feel more confident in my own maintenance history going forward. Thanks to the previous posts on this subject. Really is useful for DIY.