Originally Posted by ForcedInduction

The tube is much too long for water and dirt to get into the crankcase.
How could it be too long for dirt to get in there.
The tube will have a coat of oil in it. Not very welcoming to anything.
Since when did this stop mud daubers?
True. But I'd bet the oil from the engine makes more of a mess.
On a 6 yr. old car? Why just keep adding to it?
All engines have blowby. No filtering system in the world can get all the oil out of the crankcase air.
Why do a completely unnecessary modification?
"Pollution." BFD. Running without an EGR will put out far more NOx than the tube would release in HC's.
Who said anything about NOx? Pollution, as far as I'm concerned, is not some B.S. about greenhouse gasses purported by bad science but about not dumping filth onto the roadways, etc..

BTW, 99.8% of all medium/heavy duty diesel trucks have a road draft tube and don't re-use the blowby gasses.
Are you stating that they do not use any way of separating and returning the oil? Better double check that.

I've run with a road draft tube for more than a year now without any problems.