Do I really need a catch can???

[Buldawg76]

Ecoboost are the opposite of the GTs in that the dirty side is the driver's side not the passenger's side. Plus being boosted they tend to produce more blowby when under boost as compared to a non boosted motor.

So, if you are using a single type of catch can like a JLT or Mishi it goes on the driver's side of the engine compartment, a UPR dual catch can does go on the passenger's side on an ecoboost though.

Single or dual are both beneficial as long as you place a 100 PSI check valve in the intake side hose since the PCV valve is not really good at preventing blowby from being forced past it and into the intake when under boost, the UPR dual can comes with 2 check valves as part of the kit.

I got my JLT used and added the UPR 100 PSI check valve in the intake hose all for less than the price of a new JLT. I empty it every 1000/1500 miles and only get about a tablespoon full of oil out of it but that is oil that is not diluting the fuel charge and reducing the octane of the fuel.

BD

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[pt's21]

If you run a catch can, empty it at regular mileage intervals, and keep up with amount emptied, you will be alerted to arising issues by the increasing oil captured. Worn valve guides and/or rings would cause more blow by - increasing oil captured.

 

[JetGray_Mach1]

I get a little oil in the catch can on every oil change and my car is stock. I think its worth it, it keeps your intake cleaner. Think of it as an extra airlifter, do you really want all those crankcase vapors running through your intake system then burned in the combustion chamber. Its no big deal if you don't do it, I rather burn cleaner mixture and keep intake side clean.

 

[geezer stang]

I have a 2020 ecoboost premium that I purchased in 11/22, it had 43k on the clock. Had the car for two weeks, the engine self-destructed and Ford replaced it with a new long block. Since then, I've put 20k on the new engine and I wonder if I need a catch can. The car is 100% stock. If I need one, which one is best?

i change the "ford performance" air/oil separator(passenger side) quarterly...it usually collects 20-23 cc of oil,which otherwise would have to be burned off in the combustion chamber.

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