Oil Catch Can

[mad murph]

This may be a stupid question, so apologies if it is, but being new to mustangs does the S550 come with an oem catch can and, if so, should I be checking it regularly?
See lots of posts about people putting aftermarket ones on and wonder what the benefit is?

Thanks

 

[Manders Mustang]

No it doesn't come with one.
Does it neeed one? For a N/A street car, debatable, for a tuned or FI car it's a lil more needed.

Put it this way, they're good for a bit of peace of mind.

3-5k miles is the best timings to check/empty it.

 

[GR11M]

The left side will slowly fill, it stops the oil being recirculated and burnt, so it helps for cleaner combustion.
https://www.americanmuscle.com/coyote-oil-air-separator-1116.html

The right side will only fit on a GT350 setup but tbh there's never anything in it
https://www.americanmuscle.com/frpp-voodoo-oil-air-separator-1516gt350.html

 

[mad murph]

Thank you for the explanations.

 

[Grhumpy]

Hi, I'm just questioning myself, why ther's no oil in the driver side's catch can ?
So It doesn't need to fit both of them ? or ...

 

[avocet]

I haven't fitted one to my 18 yet.
For some reason i thought they weren't needed on the new engine,compared to the 2015 /17 coyote engine.
I suppose it wouldn't hurt to fit one.

 

[Entai]

Technically (and ok maybe slightly pedantic too ) but neither of those items inked to are oil catch cans.

They are as their names say air/oil separators.

Air/Oil Separators effectively remove the oil from the air coming out of the engine’s ventilation/breather system via a two stage process using chambers in the system. The first chamber is designed to use centrifugal force to remove the oil from the air, the clean air is then pushed into a second chamber and extracted from the AOS to the engine while the oil is recirculated back to the crankcase where it belongs.

A Catch can is a tank that is put inline of the system to capture the blow by and hold onto it. Once this gets full, you are required to empty the can.

Air Oil Seperators are more expensive than your average catch can.

A Catch Can needs to be monitored to ensure that it does not get too full and stops doing it's job, where as a pure AOS seperates the two and sends them to their rightful places, so doers not get full or need monitoring.

A lot of catch cans on the market don't do a whole lot for the high boost cars due to the air being forced through so fast, however some with offset ports or baffling fix that problem by giving the air containing oil something to run into first creating separation.

Catch cans not only require you to monitor the tank, but you also need to closely monitor the oil level of the car as well, being that it does not return the oil to the crank case.

 

[GR11M]

Hi, I'm just questioning myself, why ther's no oil in the driver side's catch can ?
So It doesn't need to fit both of them ? or ...

I see oil in the drivers side (rhd) but not in the passengers side.

 

[slowhand99]

A Catch can is a tank that is put inline of the system to capture the blow by and hold onto it. Once this gets full, you are required to empty the can.

Catch cans not only require you to monitor the tank, but you also need to closely monitor the oil level of the car as well, being that it does not return the oil to the crank case.

So, equally pedantically, although Ford calls them separators they are in fact catch cans since although they separate the air and oil (via a mesh), they do have to be emptied.