Oil catch can - Chevy and GMC Duramax Diesel Forum
2007.5 + (GMT 900) Non Powertrain--New Body Style-- Discussion 07.5 - 2010 Topics Not related to the Powertrain, interior, suspensions, body, wheels, tires, ect.

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post #1 of 17 (permalink) Unread 08-15-2019, 10:10 AM Thread Starter
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Oil catch can

Anyone using oil catch cans?
Was doing a pcv reroute here right away and I ordered one . Are they worth it or you guys just run in down the frame rail/ atmosphere

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post #2 of 17 (permalink) Unread 08-15-2019, 11:37 AM
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Quote:
Originally Posted by Ujoint View Post
Anyone using oil catch cans?
Was doing a pcv reroute here right away and I ordered one . Are they worth it or you guys just run in down the frame rail/ atmosphere
I personally just vent to atmosphere

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post #3 of 17 (permalink) Unread 08-15-2019, 11:55 AM Thread Starter
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Do you have a check valve or vent on the end? Or just open ended

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post #4 of 17 (permalink) Unread 08-15-2019, 11:56 AM
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Quote:
Originally Posted by Ujoint View Post
Do you have a check valve or vent on the end? Or just open ended
Nope, just open ended half inch hose

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post #5 of 17 (permalink) Unread 08-15-2019, 12:04 PM Thread Starter
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Ok. I was going to go that rout., Just saw a catch can for 25$ so I figured give it a whirl.
Thanks

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post #6 of 17 (permalink) Unread 08-15-2019, 12:06 PM
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Quote:
Originally Posted by Ujoint View Post
Anyone using oil catch cans?
Was doing a pcv reroute here right away and I ordered one . Are they worth it or you guys just run in down the frame rail/ atmosphere
mine runs down the frame rail, i dont have any oil drips so im not sure how much good the catch can would ultimately do anyway.

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post #7 of 17 (permalink) Unread 08-15-2019, 12:41 PM Thread Starter
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Yeah from what I've read about them it's just something to look at really. It's really just vapor coming out, small amounts

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post #8 of 17 (permalink) Unread 08-15-2019, 01:30 PM
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Here in Texas, you would have mud-dauber nests within a few days in an open hose!
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post #9 of 17 (permalink) Unread 08-15-2019, 01:47 PM
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I think it would be a good idea to at least put some Scotchbrite around the end of the hose and zip tie it on. All sorts of critters are looking for a 1/2" diameter home. The Scotchbrite would also catch some oil, letting you know if you needed a catch can.

Personally I think I would use a catch can because of the environmental consequences, more to the truck than elsewhere. Not that I think the amount of oil coming out of a PCV would make all that much difference but it would cost so little to do a bit for nature. I think you could cobble together something on your own for a lot less than $25. A plastic bottle full of Scotchbrite ziptiied to something in the area would do.
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post #10 of 17 (permalink) Unread 08-15-2019, 02:20 PM
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Quote:
Originally Posted by Northwest Coal Roller View Post
Nope, just open ended half inch hose
Mine has been this way for nearly 200k miles. ^^ Not one drip of oil on the garage floor. End of hose has a film of oil in it an some oil film on the frame near the end of the hose but it has never dripped. Wonder if the oil film/smell keeps critters out of the hose?

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