Yellow stuff in catch can
Senior Member
Joined: Jul 2011
Posts: 1,021
Likes: 1
From: Illinois
Vehicle: 2010 Genesis Coupe 2L track
That's a water oil mix. Depending on the ambient humidity you will get more water. I usually see about a 50/50 mix.
Here's a pic of my self draining one from the last car in the winter.
Here's a pic of my self draining one from the last car in the winter.
before your catch can, that frap was sent back through your engine.
Senior Member
Joined: Jul 2011
Posts: 1,021
Likes: 1
From: Illinois
Vehicle: 2010 Genesis Coupe 2L track
LOL It had a good setup for a NA engine. There was a check valve on it that sealed when the engine was under vacuum . When the engine was off the valve opened and it drained.