Still Not Sold On A Catch Can? Check Here...

glcbn · December 14, 2015

Does the E2-X kit for $339.00 include the clean side separator?

jeffsig · December 14, 2015

Few pics of the install on my truck. Turned out factory looking just as i had hoped. The clean side separator shipped separately for some reason so that's an install for another day.

Looks just like my install.

foo.c · December 14, 2015

Has anyone torn off the intake manifold on a motor that's had a catch can from Day 1? I bet it doesn't look much different.

TxTruckMan · December 14, 2015

I bet most of the condensation occurs when the engine cools after running. When the whole engine and engine compartment is running at temperature, you're not getting any condensation or build up on the engine. This is borderline snake oil.

Keeshonden · December 14, 2015

I have never heard of a catch can before. I can see it obviously catches oil from somewhere but could you please explain the purpose of it and what it is plumbed into?

Thank you.

My Kawasaki 800 Cruiser had a similar device. I would dump it at east twice a summer.

krdeal · December 21, 2015

Has anyone torn off the intake manifold on a motor that's had a catch can from Day 1? I bet it doesn't look much different.

I'll take your bet!

Everyone is a nay sayer until they have problems. I am not affiliated with any of the companies involved in the catch can business and only read of this issue in the last few weeks. However, it does make total sense up to the results of not using one EXCEPT for the oiled up (coked) intake valves. There are pictures out there of the issue on non-catch can equipped motors. I think the vendors out there should do some work on providing pictures of their motors with the catch can equipped from new.

If you have any knowledge of how a PCV system works you know that as a pollution requirement years ago the vapor (w/oil) was reingested back into the motor thru the intake system and burned off as it was mixed with fuel and air. This was not a real issue unless you used really crappy oil or additives and was just a fact of life as pollution control took hold. (Previously motors just had something called a road draft breather, where this was just dumped into the atmosphere, usually near the ground.)

This was not really a big issue for OEM's, until the introduction of the direct injected (DI)engines. ALL manufactures not just GM have this issue. Manufacturers are going to DI because it makes more power and raises fuel mileage. A double win. However, the by product of using DI is that the fuel that was normally mixed with this oil vapor is now absent on the intake side of the intake valves. Remember previously the injectors were in the port (before the intake valves) or previous to that a throttle body (like a carb)where the injectors were located. This was not an issue because the oil vapor mixed with the fuel and the air before hitting the backside of the intake valves.

NOW, the issue is since direct injection puts the fuel directly in the combustion chamber, the backside of the intake valves are only seeing air and this oil laden mist. The BBQ grill example mentioned above is a good example. Oil is getting cooked onto the intake path and onto the backside of the intake valves. This is happening you can see this on non DI motors that use crappy oil or do not do recommending oil changes.

What the end result (other than the caking up of all of this material) does in the long run is my issue. Someone mentioned that it can cause a rough idle. I need proof, but I can believe it is possible. My truck is starting to get a rougher idle and I have 24K miles on it and the catch can is going on as we speak. I am also going to do the Sea Foam flush before as well.

For those of you that cannot understand the above logic, you must believe that the removal of zinc from all non-racing oils in the USA has no affect either. For those of us with older vehicles without roller lifters know that is not the case either.

I believe any catch can is better than none. I hate the fact that I have to drain the can. But until it is addressed by the OEMs, I will use a catch can on DI engines.

Those that don't I'll see you in the shop in a few years.....

Edited December 21, 2015 by krdeal

moosehead1 · December 21, 2015

Naysayers? One ounce of snot/napalm mixture from a mere 400 miles. This is in a new truck with just over 1000 miles. You want this gunk being digested by your engine?

foo.c · December 21, 2015

Valves get dirty on engines that don't even have a PCV system.

crushNchowda · December 21, 2015

Has anyone torn off the intake manifold on a motor that's had a catch can from Day 1? I bet it doesn't look much different.

see my post on the first or 2nd page....it doesn't, but the fact is if anyone is really that concerned w/ gummy valves/engine internals all it takes is some seafoam to really clean it out

Edited December 21, 2015 by crushNchowda

joshc64311 · December 21, 2015

Has anyone torn off the intake manifold on a motor that's had a catch can from Day 1? I bet it doesn't look much different.

+1 I would like to see that also! the theory is solid and makes sense but with out side by side comparison I have my doubts. I have used them on my 3000gt vr4 and my wife's wrx but both are turbo cars tho. I think if anything it just prolongs the inevitable not prevents. but than again I am just sitting hear eating Wendy's Gouda bacon cheeseburger leaning on my armrest. dam its good

Edited December 21, 2015 by joshc64311

krdeal · December 21, 2015

Naysayers? One ounce of snot/napalm mixture from a mere 400 miles. This is in a new truck with just over 1000 miles. You want this gunk being digested by your engine?

ImageUploadedByTapatalk1450716154.538372.jpg

Dump it in foo's motor he doesn't seem to mind!

Stex · December 21, 2015

waste of time typing this but here it goes: To simple for some. Put a catch can on and you drain oil out. Gee it would have gone in my intake to my valves and rings. Too much for some here. Especially on a DI engine!

My NON-DI 09 5.3 should have had one from the get go. Maybe then no clogged rings and oil burn because of gms poor engendering on the pvc and afm. To which they admitted by coming out with a too late fix. When we put my cc on we mopped out a lot of oil. I now drain oil out of the catch can. I went RX based on discussions with them.

And run your own damn test and prove us and several companies and engineers wrong.

Edited December 21, 2015 by STex

joshc64311 · December 21, 2015

waste of time typing this but here it goes: To simple for some. Put a catch can on and you drain oil out. Gee it would have gone in my intake to my valves and rings. Too much for some here. Especially on a DI engine!

I know it works on a forced induction applications I have one on both of mine. I think it just prolongs the whole dirty valve thing on DI engines, in my opinion this is just a band aid. with nothing washing the valves you will still get deposits and I highly doubt that a can will filter out 100% of the crap.

topshelfproducts · December 22, 2015

Just drained mine tonight.

SMiller · December 22, 2015

see my post on the first or 2nd page....it doesn't, but the fact is if anyone is really that concerned w/ gummy valves/engine internals all it takes is some seafoam to really clean it out

Maybe you should tell Audi and Ford they just need seafoam because they are removing the heads to walnut shell blast the carbon off right now....

Enjoy that added expense when you hit 100,000 miles.