WVMoose

iTrader: (2)

It really isn't an argument. Due to new (sort of) regulations, the easiest method for the customer is to have the excess get pushed back into the engine and burned off. Normal drivers aren't going to remember to dump a catch can.

Does it hurt the engine? In the long run yes, anything but air going into the intake will essentially have a negative impact...the question is, when does the impact start and do the benefits of adding a catch can outweigh the price? Depends on the individual.

When I read people say things like "are you smarter then an engineer" and they have anything aftermarket on their trucks it just makes me laugh. Vehicles are manufactured based off of specific guidelines and regulations. The Federal govt says these fluids cant be released back into the air (using a filter) and cant just be dumped...so they did the cheapest and easiest option, that did the smallest amount of harm.

I drove my Ram 1500 for a year, cleaned the throttle body and had a good look inside the intake and it was a blacked out tar mess. I installed a catch can, kept it empty, and looked at my intake 10 months later and it was spotless. So again, its really up to the user if they want to add a catch can...for most of us who trade trucks in and what not, probably not worth it...you cant convince me that keeping that stuff out of the intake isn't doing some good, you might be able to convince me it isn't worth $200 if I'm going to only keep the truck a few years.

FordGate

What if adding a (super) small bit of oil to the intake charge is helping with top end lubrication?

F175

ssam98

pjazz

All you have to do is google and you'll find out that catch cans aren't necessary but are known to improve engine performance. If you don't use them then this thread isn't for you.

WVMoose

iTrader: (2)

I used to race cars and every single one of our race cars had a catch can because we weren't dumping that stuff on the track or back in the engine...every engine builder ive ever talked to has recommended one...im sure they might not have it on their daily drivers but the concept is the same. Again (not at you) it just depends on whether or not you think its worth it, obviously there are millions of cars not doing it so it cant be that damaging...but a lot of folks who take the time to even join a forum, take a little extra care.

RX1Cobra

He is getting a kickback from every catch can he sells. Wonder why he recommends them? Shocking.

David Jones

https://www.f150ecoboost.net/forum/forum.php

Catch cans are a waste of money.....BUT, if you really want one, the guys on the forum linked to are in your corner.

Shane803

I would guess it's mostly water than oil, so no thanks. But what needs lubrication? Plus coating the MAF, Throttle Body(depending on where you tie back in), CAI etc etc. Catch Cans are cheap...I could never fault someone that was wanting to add one even if it wasn't NEEDED. Some people do everything possible to take care of their vehicles, this is just another way.

I'll never say it's bad for an engine but I do believe it's better for an engine to have one.

FordGate

Race vehicles use water injection to lower the temp of the incoming air charge. Even so, I doubt you are removing enough water that it would be noticeable. You'd need a true drier to do that.

Lead, which is a lubricant, was removed from gasoline necessitating the valve seats to have to be hardened due to loss of lubricity.

So whether it be oil or water or both that the can is filtering out, seems like neither is bad for the engine. Not so? What about 2 strokes that have oil and gasoline mixed together? They have many of the same parts that a 4 stroke would have.

Sorry but I am still not convinced that removing minuscule amounts of water and oil from the incoming air-stream is good for an engine.