first catch can oil separator installed on 3rd Gen

Good article and I can see how his separator works, the oil is just drained back into the valve cover. Motorcycles have a similar type design. The only thing on the LS design would be how well it catches oil. Most likely its good. As far as our 2016's having an oil separator in the valve cover, I don't think so. I was looking around and could not find one? I doubt it can be installed inside as how would you separate the blow by? I'm puzzled. If I could get the link or source that would be great as I would like to educate myself.

 

Can you let me know where you heard that Toyota is using oil separators on this generation of engine? I am very curious about the design.

 

I was just repeating what was said in the earlier post you quoted there. I don't have any source for it, but I'm going to do some hunting ...

I'll call my buddy who is a master tech at Toyota and ask him what's up. He can pull the diagrams and stuff and see if there is anything there doing this.

 

Here is all the new information on the 16 engine. No mention of a separator. If there is one I would love to know how they designed it to work INSIDE the engine. That would be a first as I have never heard of that on a motor vehicle engine. Talk to your buddy to confirm.

It can be argued that they are not needed, but they don't hurt thats for sure. I read somewhere that for high performance race engines you can get more out of your tune as there is no oil dilution to reduce octane, but our trucks are not race engines........

 

Yea, I went through that document and didn't see any mention of it either ¯\_(ツ)_/¯

Lots of interesting stuff in there though

 

Ask anyway. It would be interesting to know, maybe Toyota is up to something new, who knows. I think the Camaro Z/28 has a factory one, but its on the outside. The Shelby SuperSnake gets one as well, on the outside.

 

A lot of german cars have it (some call it swirl seperation valves)and I was in Toyota training prior to its release where it was discussed that it will need a different PCV system for the new longer intervals.

That said I am incorrect about the valve covers and retract that. I just looked it up and it has standard 2GR sienna style valve covers. The FSM states very little about crankcase gases.

 

I've read mixed things about this. I've read arguments that those oil vapors help lubricate the valves a bit. Thoughts?

 

All the lubrication for the valves comes from the top of the engine and there are seals to PREVENT oil from entering the combustion chamber.

There is no reason to ever have oil in the combustion chamber. All oil vapors do is create carbon build up. It's far to hot in the combustion chamber for oil to lubricate anything. It gets burnt to your valves and piston top. All the lubrication is outside the combustion chamber. You have the valve seals preventing oil from entering from the top and an oil control ring on the piston to prevent oil from coming in from the bottom.

The best combustion occurs with just gas and air. Oil vapours dilute the mix and lower the octane of the gas you run(although it's very small amount)

 

Thanks for the information re: German cars. Also thanks for retracting your statement. Shows integrity. Good to have honest people on the forum.

 

Talked to my buddy who is a Toyota Tech, and he says he's not aware of any type of oil separation system on the PCV side of things.

 

Copy, didn't think there was but you never know.

 

My 2009 Dodge Ram 1500 with the 5.7 Hemi has mds. The transmission is a 5 speed auto.

 

Evo's, WRX's, or most other boosted engines benefit greatly from the addition of air/oil separators. Especially when the separators are attached in a vent to atmosphere style setup. By removing factory crank case pressurization. High cylinder pressures created from boost creates more blow-by past the piston rings, than if the engine were N/A. Relieving that blow-by pressure through enlarged PCV ports, through larger diameter PCV lines, into said vent to atmosphere canister will reduced the opposing pressures on the bottom of the cylinders. Which will aid in actualized hp increases. Because RaceCar.

Good ole '98 328 iS Bimmer has a factory one. What year are we in now, 2016??? Hmmmm

 

Actually I found another car which does have a built in separator in the valve cover, or so they say. Its the Challenger Hellcat, but I would want to inspect it. Problem is I have never seen the underside of the Hellcat valve cover.

 

When the EPA mandated PCV systems, there was an unintentional side effect. The life span of the average engine doubled from tiny amount of extra lubrication on the upper cylinder walls. Some cars will benifit from a catch can, but most will not. I always tell people to make sure they have a good reason for installing a catch can.

If you are trying to catch "nasty" stuff from getting into your intake, then you probably need to change your oil more often or use better oil.

Keeping oil out of your intake track will not give you a noticeable increase in performance unless you are trying to shave 100 the off your E/T.

Keeping your valves/injectors clean is not an issue on the dual injection engines.

Excessive oil will cause knocking, but the PCM will compensate for that, besides if you have enough oil vapor in your intake to cause detonation, then you need to get that shit checked out, you probably need a new engine.

Bottom line is, probably shouldnt put a catch can on your engine just because it's a cool mod. make sure you understand the risks and have a good reason for doing it.

 

Can't be a an advantage using a catch can for this 3rd gen application. All I can see is it giving the dealership an an excuse not to warranty some type of failure (modded vehicle)

 

That's what I'm wondering too. I sent an email to Radium Engineering asking about a catch can in a 2016. This is the (unedited) response I got from them:

"
Please read this article about catch cans:
https://www.radiumauto.com/Blog/Post/Catch-Cans-101-102

In short, yes it will work.

If you are interested in longevity, we would suggest following all of the recommended routine maintenance as a way to achieve maximum life."

 

I wonder if the Tacoma here on TW that reached 400,000 miles has an oil catch can?

If not, I don't need one.

 

Best way to prolong the life of your engine is to change your oil with high quality

$54 0w20 oil Toyota/ exxon mobil Case of 6 Quarts Full Synthetic TGMO SN 0W-20 Oil

0w20 oil and a good filter every 5k miles. Personally I believe 10k miles is too far between oil changes for any gasoline engine.