[bryclark91]

I'm looking to buy a 2013 Chevy cruz and I noticed some sludge build up. I'm trying to figure out if it's from oil or what and what fix it would be. Picture is included of the part where the build up is. The picture isn't of the car I'm looking to purchase, just one offline.

 

[bryclark91]

What is this part and why is it leaking?

Looking at buying a 2013 cruz, but I noticed black build up covering one of the lines like it has been leaking for some time. I included a picture of the the line (picture found on internet). It's the pair of white lines under the blue one. The picture attached shows some black build up on one of them like on the car I'm looking at buying, though it's 10x worse. What is causing this?