Yes - you need an oil separator can

The below photo says everything.

I have a J&L oil separator installed in the PCV system on my 3RZ.

These separators are quite small; about the size of your palm.

What you see below is from just 500 miles of driving at a maximum of 4,200 RPM’s on a very steep incline while on a road trip. I did not measure the volume; however, I assure you there was quite a lot in the can, more than I expected.

Lastly, finding milky oil (which resembles phlegm) in the can is normal; it is the result of oxidation, agitation, and vapor from the crankcase - not coolant or water.

So, go get yourself some PCV hose line, a new PCV valve and rubber grommet, and a quality oil separator. Install it.

 

It was quite tasty for anyone wondering.

 

Have you modified your valve cover with ports installed both back and front to allow you to better draw excess oil out in either direction?

Up hill or down hill??

Taking into account the added oil consumption.

 

Big question is are you impeding the flow enough to cause backup problems....

If looks like at 4000 rpm there is a significant amount of oil vapor....

are you ruining your heads to get a clean plenum.....


Not being a smartass, complex problems are cured so simple...

why didnt toyota do this.....are they slow.....cheap.....



Also you introduce more possible vacuum leak points....






I admire what your doing, dont think I havent already thought about this...

Just means I have to buy plenum and TB gaskets every 80K or so when I take it a part and give em a bath.....

Good time to check egr and clean TB while your there...



Same with egr.....I really really wanted to get rid of that sucker........
but I took safe road......the one most traveled....

I cant afford trouble...she means much too much to me now....

 

Cold air induction is a complete waste of money....

unless you drive around a lot at 4200......

so everyones different...



And really not disparaging......I think this is fascinating...

please dont let us knuckle heads deter you...




Report back over time.......damn sure let us know your observations...

good or bad....


Toyota is pretty good at what they do.....but not everything is stellar...

.......I'm not gonna buy toilet paper from em if they start makin it.......

I'll stick with Angle Soft....

 

- what is this preventing? Why do I need it?

- what happens if you forget to empty it and it overflows?

 

I would think something like a massive valve cover leak.

Then the chance of gasoline vapors a spark one meets the fire fighters up close and in person.

 

Hmmm. I was thinking that since one side has vacuum on it, it might suck that sludge into the intake all at once, instead of the little bit of time as originally designed.

 

Valid point !

Since I have never had a need for anything like this.

I would think it would be designed so only vapor could be drawn into the engine.

Maybe a bypass allowing only vapor to be drawn off.

I am sure not checking is quite common .

 

Again you just introduce more potential failure/leak points


your venturing into kia's, VW, and hyndies specialty....




Most of us circumvent this by using a cleaner on a regular basis....


Chevron Fuel System Cleaner 12oz (autozone.com)

 

Lol nope

 

Advocate for the catch can here.

He is not impeding any flow. It is just a catch can. Vapor still flows through into the intake. This just prevents any slugs of oil from going into the intake.

Toyota won't do this because it's another point of maintenance that only a few will actually benefit from. Another thing to forget to do then causes problems down the road. Toyota designs things the way they do for a lot of reasons money being top o the list. They are not going to add another part to make their vehicles more maintenance intensive.

The only reason the valve cover vents to the intake is for emissions. The added crap that puts in your engine is not needed or wanted by the motor. Emissions is another reason Toyota won't do this. Especially when their problem is already solved by burning it.

I think the OP showed why this is a good idea. Just don't do it if you want the added maintenance. Your truck will probably be fine.

 

Another question is ....when firing at full galup.....

how much of the vapor are you really catching....

are you just fooling yourself......


I dont know......I damn sure knows what everything looks like at 150K...

whole plenum has gained weight.....

not to mention the valve ports....

 

And I agree with you....

The epa has got a dick stuck up our ass....

all those guys run around in their giant Yukon's and suburban's and jet around from coast to coast...

 

A big question ......how many miles on that motor....

where is it in its lifetime?


And this is boosted ?

 

I've had one for a few years now, so here is my opinion that no one asked for.
Do you need it? - No
Is it helpful? - Probably
Are there risks? - Definitely

I dump out a little oil over the summer. I dump a lot of water/oil mix over winter. It does catch some heavier sediment at the bottom.
2010 V6 with 205k, can installed around 160k

There are a few good general threads on this topic.

 

So winter time condensation in the heads....

makes me wonder if the water vapor is always there.....and only gets condensed when that canister is butt freezing cold...


The plot thickens....


Makes me wonder how much you really catch....maybe 80% is still marching right thru...when its scorching hot...

No way to tell unless you set a series of catch cans....

Really a down line filter is only way to know for sure......anything else is just a guess...



You're gambling on the life of you engine.....proper flow thru is hyper critical.
fuel vapor/blow by could get built up in the oil.....if not properly wisked out....

 

I don't think so. I start seeing more water before the cold sets in. I think it's more ambient humidity and general condensation. I think it's just less condensation in the summer when the block never really cools down. Probably highly depends on your region/climate.

 

Yeah I change my oil and fluids and grease my joints way too often.....probably just a waste of money...

but I'm still gonna do it....its too damn bad......


If I saw even a small advantage to this....I would of jumped on it....


YOu can see what was gonna be my crankcase filter got repurposed after considering all others input and experience.... so not a total loss...