Amazon Catch Can -20 Minute installation

After reading about how PVC valves can pass oil vapor and crud back into the engines intake, I'm spending $31 bucks on a catch can just incase that's all true. Amazon's universal catch can looked as good as the pricey units. The principal is the same on all of them. The installation literally took 20 minutes start to finish.

 

Who’s gonna tell him?

 

Lmao!

Sorry to burst your bubble OP but our ancient engines still use regular port injection. No direct. And there's already an oil separator build into the motor. While the can looks sweet. Most people would say it's doing more harm than good. Best thing for carbon buildup is an Italian tune up once in a while.

 

First I've read and heard about this Oil separator. Quick search comes up for turbo engines..hmm

 

More appropriate for boosted engines from what I’ve read. I’ve got one on my Hellcat.

 

Ha! Ideal for my "DI" 3.8L. J&L oil separator can.

 

So where's all the oil coming from, or better said, not going to, when member install a catch can and always have oil when they do oil changes. I use to run one on my last tundra and it always had oil in it. Come to think of it, I should still have it hiding somewhere in the garage. And yes, I have heard of the 5.7 having factory catch can/oil separator.

 

I put one on mine (left over from a project that I sold), it catches oil that would otherwise go into the intake. Usually it's pretty close to being full when I change my oil.

 

Ah, interesting. You have it on another suction line and not on the PCV valve.

 

Well that was a waste of money. I get that it was cheap. But it’s completely unnecessary of these motors in NA form.

 

Ok, read my post #9 above and explain. Or Caspers post.

 

Oil catch cans are only needed to prevent blow by when you have a supercharger and/ or intercooler to prevent it from accumulating oil during wot and under boost. Otherwise the little bit of oil getting back to the intake isn’t hurting anything. Even an NA C8 corvette isn’t coming with an oil catch can and it has the same type of emissions as every other vehicle, which is all the pcv is for. You’re never going to notice any gains or longevity by running one on a stock n/a motor.

 

My occ catch can works like a charm and catches a good amount of oil each 5k change.

Say what you will but the pcv one works great for me.

 

My J&L works fine with my NA DI motor. Lessening carbon build up by using a catch can, quality oil, and top tier fuel is a good thing. The reason catch cans aren't used on factory DI or dual port motors is that it is simply something else that needs to be checked often. Most folks never open their hood let alone check the catch can level.

 

Gains, obviously not. Longevity, that's open for debate as I haven't seen a long term test done on an engine with and with-out a catch can. There are a bunch of pictures showing how much oil is caught in a 5k interval. Now, say what you will, to me that's oil that didn't go into your intake and mix with fresh air. Can that affect mpg or performance a bit, maybe, maybe not. Also it was oil that not going into your intake and coating it with oil. Can it help, who knows. Maybe in the long run it does. Does it hurt anything, no. Like I said, I use to have one and every oil change I had oil in it. Now that this post came up, I am gonna go look for it and install it. You can also google, does a catch can work or is a catch can good for the engine and you will get an array of results that sway one way or another. But to say with 100% certainty that it's a waste of money is not true.

 

What do you mean where is it coming from? If you put a can on your fuel line, would you be shocked there's gas in it? Of course it's going to catch some oil. Nobody said it won't work, it's just not necessary. A little oil goes into the intake. Can't stop that. That's why the motor was designed with a built in separator. The catch can will do what its supposed to do, its just not necessary. The negative here is a possibility of some kind of pressure buildup. I don't remember the term but it's something that could happen with these cans. I'm sure someone here will know what I mean.

 

Like I wrote on my last post. You or no one can say with 100% certainty that it's a waste of money. No one here can say that its does absolutely nothing when installed because no one here or anywhere that I have read, has done a long term study to see the pro/cons of a catch can on a N/A engine. As for the pressure build up, what's the difference if it was a failed PCV valve? PCV valve can get stuck closed or open. Weather your for them or not, its oil that didn't make it into the intake and pistons is the way I see it. Besides, the OP paid $30 bucks. How many people pay $4-600 on a CAI for an engine that already has one?

 

No pressure build up issues at all...unless you never check the damn can to empty it out! I'd only buy a catch from a reputable source like J&L. There are a couple other makers but.......not needed on the 5.7L.

 

J&L has done several long term studies with their cans installed on NA motors. Pro and cons. Not too many cons such as forgetting to check it. These are not something new. There are some very dubious videos on YouTube by so called influencers that best be ignored.

 

Catch cans are nothing more than a beer can with some steel wool inside to capture the oil particles. Don’t waste money on something fancy and expensive. They do very little and across the multiple platforms I own (Chevy, dodge, Toyota), there is zero evidence they actually prolong or really do anything. It’s more of a feel good thing than anything. Don’t overthink this.

 

LOL, plenty of evidence that catch cans can help "lessen" carbon build up on DI valves by trapping oil vapors. Don't underthink this although not rocket science either.

 

If u want to take that attitude then nothing matters. Do whatever u like. Nothing is for certain, fine, people survive plane crashes too. Maybe you should buy a lottery ticket. This is a car forum. If it improved your car even 1%, toyota would strap that 2 dollar made in China metal cup to your line and advertise it as a catch can that no other car maker cares enough about you to include with your purchase.

And the absence of the catch can on 99% of vehicles is your proof.

A CAI both works and is a waste of money because you already have one from toyota, just like you have an oil separator which functionally does what the can does for an NA engine. But if u want to spend money on a colorful piece of plastic (or aluminum)go nuts, this is America and that what runs our economy.

 

Something about oil that brings the worst out in people.

 

People that say these motors don’t need them in NA form havnt checked the upper intake or behind the throttle body lol. Definitely worked before I had either blower and have one on each of our vehicles. They all work well.

 

Keep in mind that catch cans need to be checked often which most car owners don't do. That requires lifting the hood occasionally. That's one of the reasons catch cans are not standard on cars with direct injection. They need to be checked and quite frankly most car owners with direct injection wouldn't give a rats ass about carbon build up on their valves which is another reason car manufacturers won't use them. Hell, most car owners prolly don't know what fuel injection is.

 

Lol, you took that as attitude. Sorry your feeling were hurt.

 

I didn't take anything, that's what you presented as your belief that you came on a forum to get a response to. Entire point of existence for this website.

And ecu chip is 19.99 on Amazon, you should buy one and save thousands on gas since there was a random dude on the reviews that said it works for him. It's not 100% settled in a long term study that it's bs so you are required to buy it. I thinks it's also blue like the catch can.

 

Exactly..

 

How you read into it, is on you. Sorry I don't have proper English for you on the internet. And the same way Toyota didn't add it to a NA engine is probably the same reason they never added one to any supercharged or turbocharged engine. And they work wonders on forced induction engine or so I've heard from the internet.