Oil Catch Can
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Cross-Country
Joined: Nov 2020
Posts: 75
Likes: 11
Oil Catch Can
Sorry if this has been covered, but I searched and didn't see much.
What is this and should I get it? I heard it mentioned in a super duty tuning video on youtube and have never heard of it.
Is it worth the $350 it seems to cost?
What is this and should I get it? I heard it mentioned in a super duty tuning video on youtube and have never heard of it.
Is it worth the $350 it seems to cost?
Fleet Mechanic
Joined: May 2018
Posts: 1,765
Likes: 502
What engine do you have? If you have a gas engine, I wouldn't bother at all. I'd give it some thought if you have the diesel.
Every engine has a CCV, crank case vent, that route from the top of the engine and into the intake line. You will get some oil vapor in the air that escapes the vent and that just gets mixed with the fresh air and runs through the engine. On a naturally aspirated gas engine, it's very minimal. On a turbo charged engine, you have more pressure in the cylinders, which leads to more blowing by the rings which can lead to higher pressures in your crank case, meaning you get actual oil coming out that vent and coating the intake side of the engine. A catch can is just a filter that separates the oil from the air so it's only dumping air into the intake and holding on to the oil. It's a matter of preference as to whether you add one or not. Stock, the 6.7 has an air/oil separator, it just doesn't work very well but, there are lots of them on the road having 0 issues without the additional catch can. I added one because I didn't want to keep feeding oil through the intake.
Every engine has a CCV, crank case vent, that route from the top of the engine and into the intake line. You will get some oil vapor in the air that escapes the vent and that just gets mixed with the fresh air and runs through the engine. On a naturally aspirated gas engine, it's very minimal. On a turbo charged engine, you have more pressure in the cylinders, which leads to more blowing by the rings which can lead to higher pressures in your crank case, meaning you get actual oil coming out that vent and coating the intake side of the engine. A catch can is just a filter that separates the oil from the air so it's only dumping air into the intake and holding on to the oil. It's a matter of preference as to whether you add one or not. Stock, the 6.7 has an air/oil separator, it just doesn't work very well but, there are lots of them on the road having 0 issues without the additional catch can. I added one because I didn't want to keep feeding oil through the intake.
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Cross-Country
Joined: Nov 2020
Posts: 75
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I am running the 7.3L engine.
I was just watching a video of somone ripping a 2020 superduty engine apart (with 14k on it) and mentioning he should put a catch can on it due to the amount of oil on top of the heads.
Had never heard of it before but it seemed like an idea.
I was just watching a video of somone ripping a 2020 superduty engine apart (with 14k on it) and mentioning he should put a catch can on it due to the amount of oil on top of the heads.
Had never heard of it before but it seemed like an idea.
Fleet Mechanic
Joined: May 2018
Posts: 1,765
Likes: 502
As long as they’re installed correctly and allow the crank case to vent, they’re never a bad idea, in my opinion. That said, I also don’t know if there’s really a need for one on a non-modified, naturally aspirated gas engine. I had one on an older F150 with the 5.0 because I watched a video showing something similar but I don’t think it really did much. It caught some water vapors but very little oil, nothing that wouldn’t have just passed right through the intake without issue.
Tuned
Joined: Jul 2020
Posts: 370
Likes: 87
I am running the 7.3L engine.
I was just watching a video of somone ripping a 2020 superduty engine apart (with 14k on it) and mentioning he should put a catch can on it due to the amount of oil on top of the heads.
Had never heard of it before but it seemed like an idea.
I was just watching a video of somone ripping a 2020 superduty engine apart (with 14k on it) and mentioning he should put a catch can on it due to the amount of oil on top of the heads.
Had never heard of it before but it seemed like an idea.
Fleet Mechanic
Joined: May 2018
Posts: 1,765
Likes: 502
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