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Catch can results

chadman
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chadman Enthusiast

chadman

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I installed mine on my 2020 Sierra 5.3 at about 1,500 miles. At 5,500 miles I decided to check it. So after 4,000 miles this is what I found; about half full which seemed to be 2 to 3 ounces. 
 

That’s a fair amount of oil and it’s even more important to catch it on DI engines.

 

B75D25DB-C687-490D-8846-3A6762204021.jpeg

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hollywoodsle
hollywoodsle

Your comment about hose clamps and deleting entire systems has absolutely nothing to do with what anyone is talking about.   I'm not getting sucked into one of your ridiculous wormholes, so

Cpl_Punishment
Cpl_Punishment

I must have missed the part where someone confirmed that a thimble full of oil making its way through the intake manifold over the course of 5000 miles is actually a concern. 

Grumpy Bear
Grumpy Bear

So less than a half a cup in a 4,000 miles.  ?

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chadman Enthusiast

chadman

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10 hours ago, chadman said:

I installed mine on my 2020 Sierra 5.3 at about 1,500 miles. At 5,500 miles I decided to check it. So after 4,000 miles this is what I found; about half full which seemed to be 2 to 3 ounces. 
 

That’s a fair amount of oil and it’s even more important to catch it on DI engines.

 

B75D25DB-C687-490D-8846-3A6762204021.jpeg

JLT 

DemonWorks Enthusiast

DemonWorks

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It's always nice to see results ! I just emptied mine as well and had quite a bit. 

mike5511 Enthusiast

mike5511

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A catch can is considered a modification of the emissions system. Automatic voiding of your warranty the dealer tells me. Just a fyi.

lt1z Enthusiast

lt1z

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I installed mine on my 2020 Sierra 5.3 at about 1,500 miles. At 5,500 miles I decided to check it. So after 4,000 miles this is what I found; about half full which seemed to be 2 to 3 ounces. 
 
That’s a fair amount of oil and it’s even more important to catch it on DI engines.
 
B75D25DB-C687-490D-8846-3A6762204021.thumb.jpeg.7f3aa93643185b5a1d23b724be37e4b6.jpeg

Ive seen the same at 4000 miles
AdamAT4 Enthusiast

AdamAT4

Posted
Posted
A catch can is considered a modification of the emissions system. Automatic voiding of your warranty the dealer tells me. Just a fyi.
Thats crazy if true, a catch can is increasing reliability and over time reduce emissions as the valves will stay cleaner and seal better. Running premium gas won't even help a DI only engine, do these trucks use port as well as DI?

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lt1z Enthusiast

lt1z

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Posted
Thats crazy if true, a catch can is increasing reliability and over time reduce emissions as the valves will stay cleaner and seal better. Running premium gas won't even help a DI only engine, do these trucks use port as well as DI?

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DI only. You arent allowed to alter emissions components
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MoonDogg Enthusiast

MoonDogg

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It's easy to put the factory hose back and take the catch can out, there is no way they can prove you had one.

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lt1z Enthusiast

lt1z

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It's easy to put the factory hose back and take the catch can out, there is no way they can prove you had one.

Of course as long as you remember to do it
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Grumpy Bear Senior Enthusiast

Grumpy Bear

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On 7/4/2020 at 7:45 AM, chadman said:

JLT 

On their site is a simple instruction paraphrased below.

 

Pull the hose between the PCV and the manifold. If there is no oil in it you don't need a can. If there is, you need one.

 

You don't need to ask a forum. You need to look for yourself.  

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Doolin-Dalton Enthusiast

Doolin-Dalton

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Posted

This is awesome and you're right a must for DFI engines.  My previous truck was the 2016 2500HD with the 6.0L V8 but I think that engine was the last of the SFI.   DFI is nice, but it comes with a hiccup in gunk, these catch cans help eliminate that.

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