Catch Can ****

[donjetman]

This is the most I’ve ever seen since installing this can a couple years ago. It came out as a very very light trickle.

We have a smallish catch can. Holds about 8 oz. We get about 2 oz every 10,000 miles from it. Doesn't have h2o in it, but smells like gasoline.

 

[trailblazer]

I got home about an hour ago. 550 miles expressway since I drained it a couple days ago. I’m guessing 3oz here?

 

[donjetman]

That's not right You got a lot more than condensation going on. Like a crack in a water passage leaking coolant into the crankcase. Are you losing coolant? Send a sample off to Blackstone labs for analysis https://www.blackstone-labs.com/

 

[Larryjb]

That's not right You got a lot more than condensation going on. Like a crack in a water passage leaking coolant into the crankcase. Are you losing coolant? Send a sample off to Blackstone labs for analysis https://www.blackstone-labs.com/

That can indeed be due to condensation. It depends on the can and environmental conditions. I was collecting an ounce of water every day, but not losing coolant.

 

[trailblazer]

Here it is separated after sitting since Sunday evening (I just took this photo). Odd layers of oil and two types of emulsion. Looks like chocolate syrup over a latté.

 

[donjetman]

Here it is separated after sitting since Sunday evening (I just took this photo). Odd layers of oil and two types of emulsion. Looks like chocolate syrup over a latté.

Does anybody else here get this in their catch can ??? I certainly don't. I posted a pic previously here.

 

[trailblazer]

This is the first time I’ve checked the new catch can in my 2015 Yukon XL 5.3. It’s FULL after about 1000 miles! Lol. I’m going to mod this like the one in my ‘09 to have a dump valve on the bottom. Unscrewing this was a hot mess. It’s easier to just turn a valve and drain into a cup.

 

[donjetman]

UNBELIEVEABLE ???????

 

[trailblazer]

I really wonder if I could just drill & tap the bottom of the cup (probably install a quick disconnect nipple) and have that connect with a hose to a bigger simple container that can sit on the battery box. Like a gallon of milk or Amsoil 4qt jug. These catch cans are in vacuum, correct? If so, then I’ll have to keep it from venting when the engine is on. I know that the manufacturer of the Yukon’s aluminum catch warns that freezing wx could cause their cups to crack open if not emptied. I just don’t want to dump this thing every few days.

 

[gooffeyguy]

Does anybody else here get this in their catch can ??? I certainly don't. I posted a pic previously here.

In the winter time when it's cold out the oil in my can will be that thicker light brown color only because of condensation.

My can doesn't get that full though. I empty it at oil change (5k miles) and once halfway between oil changes and it only gets maybe a shot glass amount each time.