For Those Who Don't Think a Catch Can is Needed on Gen 4 s...

[LokiWolf]

So you don’t think any of that vapor and oil or extra vapor and oil blows by the rings with the fuel without one? On our turbocharged SxS they may not have the same knock protection as the EcoBoost. With extra oil and water introduced into the cylinders it can change the effective octane rating resulting in a lower knock protection. We see a increase is dirty oil as well as the usual dirty intercooler and compressor wheel.


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Always a possibility, but I don’t think it will show on an oil analysis. If it does, the difference will be so small it will have no functional difference. Just my opinion. The change in the oil doesn’t build up over time, because you change the oil. Where as the deposits build over time. That is the important part.


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[Meeker]

FYI - new oil spec for GDI engines. Doesn't mention cleaning up intake valves though.

Original RockAuto newsletter (but this will change every month): https://www.rockauto.com/Newsletter/

After a few weeks use this link to click on the Oct 2020 article: https://www.rockauto.com/Newsletter/Archive.html

Better link: https://www.motor.com/2019/05/get-ready-gf-6-motor-oil/

Any chance Ford dealerships will start using the new oil for EcoBoost Expeditions?

 

[MxRacer965]

It’s only $150 for a JLT catch can setup, but it only is for the passenger side. Isn’t there a driver side PCV system that would be still feeding the intake? Making the JLT setup partially useless? Why just one side and not the other?

 

[wakeboarder]

It’s only $150 for a JLT catch can setup, but it only is for the passenger side. Isn’t there a driver side PCV system that would be still feeding the intake? Making the JLT setup partially useless? Why just one side and not the other?

My post #30 in this thread at least partially addressed this. If my assumptions are correct, then passenger side only will catch most of it if you don’t run boost constantly. If you tow or run long uphill grades that require boost, then you may see more of a benefit of using both sides.

If somebody wants to experiment, they could buy an individual can for each side and compare the amount collected. If somebody would buy me a second JLT catch can, I could surely figure it how to mount it on the drivers side as well.

Has anybody inspected their drivers side turbo to see if it is gunked up at all?

 

[Expedition Dave]

I went with the pax side b/c I did not want to put a hole in my intake system.
I also felt/heard that the "lion's share" of oil misting comes from the pax side. hence why I am only running the one side with the one way check valve.

At this point, if someone could convince me with proof having both were significantly better, I'd consider it. But at this point with many saying "you don't even need it" I figure solving 60-80% of an issue some say ain't an issue is better than 0% LOL

 

[Big H]

Sounds like an excellent plan! I think you will be happy with it over all! Not really heard any complaints from the kit once installed.


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Just finished up the catch can and the air intake.








Waiting on the tune files to load the 93 street performance one on Monday [emoji48]


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[Jarf11106]

My question is if catch cans are important to vehicles why dont they come with them? If they do come with them im assuming the factory ones are crap?

 

[LokiWolf]

My question is if catch cans are important to vehicles why dont they come with them? If they do come with them im assuming the factory ones are crap?

In all seriousness, did you read the thread, or the others on the subject on here?

Simple answer...another thing for the consumer to mess with, that isn't even capable nowadays of changing their own oil. Hoping it gets to the end of warranty before the deposits possibly become an issue. Bottom line, want to keep the buildup of oil out of your intake and the intake valves, then install a catch can.

 

[2020ExpyPlatinum]

I'm not keeping mine long enough to deal with having to put a catch can on an 80,000 dollar vehicle that probably should have had one in the first place.

Can't wait until they come out with an electric one of these expeditions with 400 - 500 mile range.

Once that happens ford can keep this horribly designed 3.5 v6.

 

[LokiWolf]

I'm not keeping mine long enough to deal with having to put a catch can on an 80,000 dollar vehicle that probably should have had one in the first place.

Can't wait until they come out with an electric one of these expeditions with 400 - 500 mile range.

Once that happens ford can keep this horribly designed 3.5 v6.

horribly designed 3.5 V6? Huh. This motor is GREAT. I am on my 3rd Expedition with it. Great power, same or better MPG than any V8 out there in the same size SUV.

 

[LazSlate]

IMO catch cans are not needed on Gen 4's and results using them could be misleading.
If your catch can is full what is the oil % that is the big number. Gas in the PVC gets reburned no issue for the engine.
In high climate areas the nature of the metal catch can will collect condensation. Without it condensation would be burned in the engine which is no big deal either. So just because there is gas in the catch can over a long period of time does not mean it prevented any sludge from going in the engine. Unless you can derive the exact oil content its impossible to know the value.
Also if it was a lot of oil in the PVC then these engines would be running low on oil every month.

Also what is the impact towards warranty and altering the emission systems. Some states its illegal to mod the emission system.

 

[Boostedbus]

IMO catch cans are not needed on Gen 4's and results using them could be misleading.
If your catch can is full what is the oil % that is the big number. Gas in the PVC gets reburned no issue for the engine.
In high climate areas the nature of the metal catch can will collect condensation. Without it condensation would be burned in the engine which is no big deal either. So just because there is gas in the catch can over a long period of time does not mean it prevented any sludge from going in the engine. Unless you can derive the exact oil content its impossible to know the value.
Also if it was a lot of oil in the PVC then these engines would be running low on oil every month.

Also what is the impact towards warranty and altering the emission systems. Some states its illegal to mod the emission system.

One thing everyone has seemed to miss here is how a catch can also helps stop the intercooler from oil/gas logging. Some other benefits should be more fuel efficient due to cleaner valves and plugs, and one would think the catalytic converters would less likely clog from burning oil through them and keep them more efficient as far as performance goes. All these things are performance/economy related. JMO

 

[LazSlate]

One thing everyone has seemed to miss here is how a catch can also helps stop the intercooler from oil/gas logging. Some other benefits should be more fuel efficient due to cleaner valves and plugs, and one would think the catalytic converters would less likely clog from burning oil through them and keep them more efficient as far as performance goes. All these things are performance/economy related. JMO

My point on my post was how much is actual oil? Gas evaporates or is burned again, so that wont clog or dirty anything. And water the same. So how much that the can catches is really oil? I agree oil should not be re-ingested but if its an amount to cause concern then one would think the engine would be running low on oil more often then normal. I am not against catch cans I think for race applications and older engines and even engines not designed well its great to have. But for new 4th gen engines how much collected in the can is misleading (oil %)

 

[Boostedbus]

My point on my post was how much is actual oil? Gas evaporates or is burned again, so that wont clog or dirty anything. And water the same. So how much that the can catches is really oil? I agree oil should not be re-ingested but if its an amount to cause concern then one would think the engine would be running low on oil more often then normal. I am not against catch cans I think for race applications and older engines and even engines not designed well its great to have. But for new 4th gen engines how much collected in the can is misleading (oil %)

This what I’ve collected in 40 couple thousand miles. I can assure you that it’s not all gas, at best 50% I’d guess by its viscosity . Either way I’m glad it’s not laying in my intercooler or baked on plugs, valves, etc…….. It definitely doesn’t look like 93 octane with its advertised “very few impurities”.

 

[Wangle]

Wow! I never thought of saving it!! Mine is usually milky and thick when trips are short, and dark like yours on longer trips. I get about 1/2-3/4 oz. per 1k miles. My thought has always been that a catch can may not be necessary, but I am really glad that stuff is not going through my engine.
Your cumulative collection really tells a story. Great work!!

 

[Boostedbus]

Wow! I never thought of saving it!! Mine is usually milky and thick when trips are short, and dark like yours on longer trips. I get about 1/2-3/4 oz. per 1k miles. My thought has always been that a catch can may not be necessary, but I am really glad that stuff is not going through my engine.
Your cumulative collection really tells a story. Great work!!

Yeah my average is about a quart per 40k so far. That’s gonna be a gallon at 160k unless things pick up because of wear (more blow by). My can doesn’t catch water (condensation) because it’s an oil separator also, which the water actually helps with good fuel atomization, combustion, and possibly helping actually clean the valves by letting it pass through.

 

[richkim11]

So I'll be getting my expy next month... I take my cars to the mechanic regularly, but never thought about a catch can. Can anyone tell me the best one to get, and how much should a mechanic charge to install? Also, is emptying it a hassle? it seems I'll probably have to look to check on emptying every month at least.

 

[LazSlate]

So I'll be getting my expy next month... I take my cars to the mechanic regularly, but never thought about a catch can. Can anyone tell me the best one to get, and how much should a mechanic charge to install? Also, is emptying it a hassle? it seems I'll probably have to look to check on emptying every month at least.

UPR and J&L are the most popular. They are easy home installation plug an play with the exception of drilling a hole (maybe) to mount the catch can next to the battery.

I have a 2022 Timberline and I am forgoing the catch cans. I think they are more suited for racing applications or older / no as well designed engines.
The posts showing liquid in the can after months can be misleading as this is condensed accumulation. The small about of blow by re-ingested into these eco boosts is negligible and the biggest issue in the past was carbon on the valves which Ford fixed with port injection. PCV should be post intercooler so blow by does not effect that. There are lots of forums on reddit where racers who rebuild their engines a lot talk about how a catch can does really nothing and is more of a after market sales pitch.

To me a catch can is more of a hassle. You have to make sure you empty it and in higher humidity it could fill up quick with condensation. Also technically Ford could void the warranty due to emission tampering if it contributes to some failure. Again this is my opinion not trying to talk anyone out of it.

 

[wakeboarder]

UPR and J&L are the most popular. They are easy home installation plug an play with the exception of drilling a hole (maybe) to mount the catch can next to the battery.

I have a 2022 Timberline and I am forgoing the catch cans. I think they are more suited for racing applications or older / no as well designed engines.
The posts showing liquid in the can after months can be misleading as this is condensed accumulation. The small about of blow by re-ingested into these eco boosts is negligible and the biggest issue in the past was carbon on the valves which Ford fixed with port injection. PCV should be post intercooler so blow by does not effect that. There are lots of forums on reddit where racers who rebuild their engines a lot talk about how a catch can does really nothing and is more of a after market sales pitch.

To me a catch can is more of a hassle. You have to make sure you empty it and in higher humidity it could fill up quick with condensation. Also technically Ford could void the warranty due to emission tampering if it contributes to some failure. Again this is my opinion not trying to talk anyone out of it.

There are two PCV locations on these engines. One at the intake manifold and one at the intake manifold. If running with boost, it will dump ahead of the turbo. If not boosting, it will dump at the intake manifold. Single catch can systems typically only work with the system connected to the intake manifold.

 

[Boostedbus]

So I'll be getting my expy next month... I take my cars to the mechanic regularly, but never thought about a catch can. Can anyone tell me the best one to get, and how much should a mechanic charge to install? Also, is emptying it a hassle? it seems I'll probably have to look to check on emptying every month at least.

Do a search for Ford Tech Makuloco Team RXP catch can. That’s the video that I watched that lead me to decide the Team RXP can. It’s very informative.