Scotty Kilmer says that they are really only for some DI cars, or old worn out cars:
I like the idea of having a dipstick in the catch can.
I like the idea of having a dipstick in the catch can.
Oil Catch Can on 2009 Caddy CTS-V (See it working)
- Thread starter StevieC
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This is the can I bought... LOL
I won't be using those terrible hoses though.
I won't be using those terrible hoses though.
Whipcitywrencher
Site Donor 2025
Originally Posted by StevieC
I have one on order from Amazon and it should be here Friday. It has baffling. It was a whole $30. I will install it this weekend (Yes I will take pictures) and then I will document the mileage and what I find all the way along. I don't know if Toyota has a strategy for PCV vapor built into the valve covers or plenum it feeds into but I'm interested to see what it catches if anything.
I intend to run the hoses downward from the PCV into the can and then back up again into the plenum to condense and catch as much as possible. I will also install a 3/8" fuel filter that is cellulose based and see through so that it will catch anything that isn't condensed into the can. This should change colours from yellowish to dark brown if it's catching things the can isn't.
The filter won't be here by this weekend but I will add it to the system as soon as it arrives.
Stay tuned...
Looking forward to seeing your result's.
I have one on order from Amazon and it should be here Friday. It has baffling. It was a whole $30. I will install it this weekend (Yes I will take pictures) and then I will document the mileage and what I find all the way along. I don't know if Toyota has a strategy for PCV vapor built into the valve covers or plenum it feeds into but I'm interested to see what it catches if anything.
I intend to run the hoses downward from the PCV into the can and then back up again into the plenum to condense and catch as much as possible. I will also install a 3/8" fuel filter that is cellulose based and see through so that it will catch anything that isn't condensed into the can. This should change colours from yellowish to dark brown if it's catching things the can isn't.
The filter won't be here by this weekend but I will add it to the system as soon as it arrives.
Stay tuned...
Looking forward to seeing your result's.
Originally Posted by SteveSRT8
Having run GM V8's exclusively in our fleet for decades we find there are oil related issues in a few, but they are the exception rather than the rule. Millions and millions of vehicles running every day without one pretty much does prove they're not needed. We have run our fleet trucks to far beyond 200k miles with no can needed.
They are just wanted by some who imagine they have a cleaner and better engine because of it! We call that a "feel good" mod. There are lots of them out there, feel free to try them all.
Just quit trying to tell all of us we somehow "need" a catch can....
How many of those GM V-8 were DI or turbo DI?
No one says every car needs one.
Having run GM V8's exclusively in our fleet for decades we find there are oil related issues in a few, but they are the exception rather than the rule. Millions and millions of vehicles running every day without one pretty much does prove they're not needed. We have run our fleet trucks to far beyond 200k miles with no can needed.
They are just wanted by some who imagine they have a cleaner and better engine because of it! We call that a "feel good" mod. There are lots of them out there, feel free to try them all.
Just quit trying to tell all of us we somehow "need" a catch can....
How many of those GM V-8 were DI or turbo DI?
No one says every car needs one.
Originally Posted by StevieC
... I don't know if Toyota has a strategy for PCV vapor built into the valve covers or plenum it feeds into but I'm interested to see what it catches if anything.
I intend to run the hoses downward from the PCV into the can and then back up again into the plenum to condense and catch as much as possible. I will also install a 3/8" fuel filter that is cellulose based and see through so that it will catch anything that isn't condensed into the can. ... Stay tuned...
OK, I'll stay tuned.
Be careful that the fuel filter doesn't clog and block the flow, which will cause blowby to back up through the PCV intake.
My Toyota has the PCV in a difficult-to-reach spot on the side of the block, not in the conventional location on the valve cover. They do claim there's a fairly elaborate baffling system to stop most of the mist. It must work pretty well, because this car consumes remarkably little oil---so far. However, several of the mechanically ambitious members of priuschat.com are gung-ho installing catch cans as a tactic to avoid future troubles. I'm reserving judgement.
I can see a neglected catch can potentially creating trouble in winter if it fills so full of condensed water and ice that the engine ends up getting a gulp of liquid water. That's likely one reason (of several) that car manufacturers don't deploy them.
... I don't know if Toyota has a strategy for PCV vapor built into the valve covers or plenum it feeds into but I'm interested to see what it catches if anything.
I intend to run the hoses downward from the PCV into the can and then back up again into the plenum to condense and catch as much as possible. I will also install a 3/8" fuel filter that is cellulose based and see through so that it will catch anything that isn't condensed into the can. ... Stay tuned...
OK, I'll stay tuned.
Be careful that the fuel filter doesn't clog and block the flow, which will cause blowby to back up through the PCV intake.
My Toyota has the PCV in a difficult-to-reach spot on the side of the block, not in the conventional location on the valve cover. They do claim there's a fairly elaborate baffling system to stop most of the mist. It must work pretty well, because this car consumes remarkably little oil---so far. However, several of the mechanically ambitious members of priuschat.com are gung-ho installing catch cans as a tactic to avoid future troubles. I'm reserving judgement.
I can see a neglected catch can potentially creating trouble in winter if it fills so full of condensed water and ice that the engine ends up getting a gulp of liquid water. That's likely one reason (of several) that car manufacturers don't deploy them.
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The Catch can was actually in the Amazon box sitting at my door today. I ordered it yesterday after work. Man I love Prime. Plus I'm working from home tomorrow so I will have plenty of time to install it.
This is the Catch Can I purchased. I'm linking to Amazon.com instead of Amazon.ca but I did purchase it on the Canadian Amazon site. It has a dipstick for quick easy checking without having to take the can bottom off.
https://www.amazon.com/Ruien-Baffled-Universal-Aluminum-Reservoir/dp/B06XK9PTP7
(If you scroll down to the reviews and click "See all 151 reviews" and then look on page 2 there is a video where the guy shows you what his BMW sent to the Catch Can after 1,000 miles)
I'll post pictures here once the install is done tomorrow and then mark down the mileage and check it every 1,000km (600 Miles). Again I don't know if it will catch anything because Toyota might already have a strategy for eliminating oily vapor from their PCV gases before it leaves the valve cover. We'll see.
This is the Catch Can I purchased. I'm linking to Amazon.com instead of Amazon.ca but I did purchase it on the Canadian Amazon site. It has a dipstick for quick easy checking without having to take the can bottom off.
https://www.amazon.com/Ruien-Baffled-Universal-Aluminum-Reservoir/dp/B06XK9PTP7
(If you scroll down to the reviews and click "See all 151 reviews" and then look on page 2 there is a video where the guy shows you what his BMW sent to the Catch Can after 1,000 miles)
I'll post pictures here once the install is done tomorrow and then mark down the mileage and check it every 1,000km (600 Miles). Again I don't know if it will catch anything because Toyota might already have a strategy for eliminating oily vapor from their PCV gases before it leaves the valve cover. We'll see.
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Actually here is the video... The guy posted it to Youtube as well as Amazon.
This is after 1,000 miles in his BMW.
This is after 1,000 miles in his BMW.
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![[Linked Image]](https://bobistheoilguy.com/forums/ubbthreads.php/ubb/download/Number/331/filename/DSCF6335.JPG "[Linked Image]")
Ok folks it's installed... The bracket holding it is temporary until I make up a better one using both studs shown in the picture.
I will check what the can catches every 1,000km (600 miles) and report back.
I wanted to install the can lower than the engine but that wasn't possible given the tight spaces and bottom skid shields.
I have a 3/8" Cellulose see through fuel filter coming and I want to put this in the line before it returns to the engine to see if it would change colours by catching the mist the can doesn't.
I'm glad I put this on because the stock hose when I took it off was moist with oil so we should catch something in the can and if not all this extra hosing should keep it out of the engine.
The stock PCV valve is a 3/8" Diameter on the front valve cover bottom right. It uses a special hose that ends up at 5/8" at the other end that feeds the vapor into the engine so I used a brass union I made up to adapt it from the catch 3/8" outlet to the oem 3/8" end of the Toyota hose and strapped this down to the wire carrier on the valve cover. (There were no barbed unions at the 3 hardware stores I went to)
Photo's are uploaded to my Google Drive because I haven't seen the BITOG Photo Upload feature fixed yet. I know they are working on it.
With engine cover installed: (Can installed)
https://drive.google.com/file/d/1vfIQnk8gMTrFGbm8hOek5p-qs6gEhIcQ/view?usp=sharing
With the engine cover removed: (Can installed)
https://drive.google.com/file/d/1aP3oabDJ-kThCylJZezyTo5D8-facdBm/view?usp=sharing
With engine cover removed: (Before Can Installation)
https://drive.google.com/file/d/1Y6rf_FPwTd0Dk41Ui8n1wwha6FSeAbQq/view?usp=sharing
I will check what the can catches every 1,000km (600 miles) and report back.
I wanted to install the can lower than the engine but that wasn't possible given the tight spaces and bottom skid shields.
I have a 3/8" Cellulose see through fuel filter coming and I want to put this in the line before it returns to the engine to see if it would change colours by catching the mist the can doesn't.
I'm glad I put this on because the stock hose when I took it off was moist with oil so we should catch something in the can and if not all this extra hosing should keep it out of the engine.
The stock PCV valve is a 3/8" Diameter on the front valve cover bottom right. It uses a special hose that ends up at 5/8" at the other end that feeds the vapor into the engine so I used a brass union I made up to adapt it from the catch 3/8" outlet to the oem 3/8" end of the Toyota hose and strapped this down to the wire carrier on the valve cover. (There were no barbed unions at the 3 hardware stores I went to)
Photo's are uploaded to my Google Drive because I haven't seen the BITOG Photo Upload feature fixed yet. I know they are working on it.
With engine cover installed: (Can installed)
https://drive.google.com/file/d/1vfIQnk8gMTrFGbm8hOek5p-qs6gEhIcQ/view?usp=sharing
With the engine cover removed: (Can installed)
https://drive.google.com/file/d/1aP3oabDJ-kThCylJZezyTo5D8-facdBm/view?usp=sharing
With engine cover removed: (Before Can Installation)
https://drive.google.com/file/d/1Y6rf_FPwTd0Dk41Ui8n1wwha6FSeAbQq/view?usp=sharing
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Whipcitywrencher
Site Donor 2025
Looks like you have a lot of hose there, but it should work if there's any oil to be caught.
It wasn't easy working around the engine cover and still getting it to clip back on, and then I had to keep out of the way of other things so this was the best I could do.
I'm open to other ideas if you have them.
I'm open to other ideas if you have them.
Whipcitywrencher
Site Donor 2025
Looks Fine.
Just took the Highlander for a drive to pick-up my spouse from work and man does that can get hot. It's quite uncomfortable to touch. Not spin-on oil filter hot but hot enough.
Really glad I wrapped the fuel hoses going to the can in Wire-loom and electrical tape to protect it all. Especially the hoses under the engine cover. Sheesh!
Really glad I wrapped the fuel hoses going to the can in Wire-loom and electrical tape to protect it all. Especially the hoses under the engine cover. Sheesh!
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Originally Posted by ZeeOSix
Looks like the one on the BMW in the video caught mostly water. On the two catch-cans I've used, there is never any water in them, only oil.
The amount of water is likely to be highly temperature-dependent. There's always water vapor in blowby, and more will condense out before reaching the manifold when the temperature of the can (or hose leading to it) is low. Which depends on ambient temperature and other factors ...
Looks like the one on the BMW in the video caught mostly water. On the two catch-cans I've used, there is never any water in them, only oil.
The amount of water is likely to be highly temperature-dependent. There's always water vapor in blowby, and more will condense out before reaching the manifold when the temperature of the can (or hose leading to it) is low. Which depends on ambient temperature and other factors ...
He should put it in an old pot and hold it at water boiling temperature and boil off all the moisture to see how much oil he has. I think it's all discoloured water because if it were oil it should be separating from the water and not emulsified.
Ok folks. I moved the catch can to an easier to service spot and made up a better bracket. While doing this I thought I would have a gander in the Catch Can to see if it caught anything in the 400km I did since installing it.
This is proof that the Catch Cans work at least for this engine. Either that or I should be using something other than 0w20. LOL
Catch Can new bracket and location:
https://drive.google.com/file/d/1hAj7JqAFVzO3d5z6uIwfY_WsT9vzINrs/view?usp=sharing
View of what the Catch Can caught in 400km (250 miles):
https://drive.google.com/file/d/114ottfq9dwt0uXEhR1OS1SpM-816dqvc/view?usp=sharing
This is proof that the Catch Cans work at least for this engine. Either that or I should be using something other than 0w20. LOL
Catch Can new bracket and location:
https://drive.google.com/file/d/1hAj7JqAFVzO3d5z6uIwfY_WsT9vzINrs/view?usp=sharing
View of what the Catch Can caught in 400km (250 miles):
https://drive.google.com/file/d/114ottfq9dwt0uXEhR1OS1SpM-816dqvc/view?usp=sharing
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