Kenworth T880 White smoke (exhuast?)

Hello, this truck is a Kenworth T880. It seems there is quite of bit of white smoke coming out of this black tube on the passenger side of the engine. It's getting into the cab. What is this?

 

Not sure on the engine (wont be back to work till friday), but its coming out of that greasy looking black tube in the picture.

 

Thanks, the smoke pours out like its a #### steam engine locomotive and it ends up into the cab choking me out. I guess I need to OOS it.

 

The smoke is pretty white (not water vapor) compared to exhaust so I would assume its burning oil (I cant really describe the smell) and its coating the interior in a slight residue that's attracting dirt/dust. I've only driven this truck 4 times in like 2 months.

Thanks guys, it's a company truck not my own. I just wanted to get a better idea what the problem was so I could write up a detailed report on the issue so the mechanics can get straight to it. I remember another driver complaining about smoke entering the cab but the mechanics couldn't figure it out. ( I think it was a lube tech that looked into the issue because it was on a weekend ).