Oil Catch Can

This. Oil catch cans aren't really needed on most vehicles.

 

Google is your friend.

 

I read somewhere that the 3.6 engine is direct and port injected. I assume the port injection is for cleaning the valves.

 

I ran a catch can on my 17 Silverado and up to last week when I traded it in I collected over 2 litres of blow by. It is a DI system and believe me you NEED one. With our trucks (3.5 V6) being both DI and Port I don't see the need for it. DI with cause valve coking after time where as the Port will (as someone has already stated) wash the back side of the valves preventing any coking.
There is a pic in this thread of the amount of oil "caught" in 15k miles...maybe 6oz? On a DI motor that amount of mileage would have collect 5x's that. I guess I'm trying to say is don't worry if you don't have one. If you have one it won't do any harm, just really not as good as one would think is all. Oh and don't worry about the winter thing...way to much heat under that hood.
I took my can off my truck before I traded it in. It's going to my buddy who has a 15 Silverado. I'm not going to put it on the Taco.

 

Please stop playing engineers.

 

But it's not politically correct to play cowboys and Indians any more....

Here's how I see it: A catch-can is inexpensive (~$20 - 200). Will it help anything? Maybe, maybe not. Will it hurt anything? Almost certainly not. On a $40K+ truck spending $50 on a mod that might have benefits and doesn't have any detriments doesn't seem all that whacky to me....

 

d4s is Toyota’s direct and port injection, designed to prevent carbon build up. I’m guessing your truck with 265k was a 2nd gen with the old 1gr-fe. The 3rd gen has a completely different engine. Don’t waste your money on an OCC it won’t do a thing, trust me.

 

It most certainly CAN damage things. Not if u keep up with it though.

 

It’s been about a month since the last big Catch Can Debate. Seems like a good way to spend an evening.

 

I'm in! I think changing oil and filter every 5-10K will keep this motor happy for many miles.

 

exactly, thats all thats needed, new filters, tune up, your good to go

 

Exactly my point. $40k truck and you're trusting some Joe Blow with a $50.00 R&D budget over Toyota engineers. Your truck, your call.

 

Just like we can argue the pros and cons of a catch can, we can also argue about the goal of Engineering a vehicle. Don't assume the #1 goal of Engineering is longevity at all costs. It clearly is NOT with our 3rd gen V6. If the goal WAS longevity at all costs, they would have made some different choices.

 

These oil catch cans are snake oil sales man in modern times. Your engine burns way more of this "condensation" that is caught in this "magic catch can" or than it will ever catch! Your engine is a big air pump, sucking in air and condensation every time the intake valve opens. This "catch can", catches next to nothing compared to what happens every engine cycle! It doesn't increase power either. They are a waste of money.

 

has any truck over the years gone bad because of not having a oil catch can?

 

Like what?

 

I use a UPR with a diffuser and universal bracket. I used some metal scraps to make a mount. As others have said, it probably won't make your engine last another 200,000 miles, but it will catch some nasty shit and keep it from recirculating. Port injection helps negate the benefit of the catch can but I'd rather keep it as clean as possible from the beginning. I look at it like boutique oil. Maybe it will help and maybe not, but it's a negligible cost over time (for my pattern of use) with no undesirable side effects. I imagine manufactures don't include them from the factory because it's another maintenance item. People will forget to empty them and suck straight fluid into the intake.

The 3.5 2GR-FKS is working out to be a pretty robust engine. OVTune sings it's praises often in the twin turbo thread. Forged crank, forged rods and cross drilled main caps are the highlights.

 

Adding the complexity they did made the system less reliable because you have more parts to fail. Examples:
2 fuel pumps are twice as likely to fail as 1 fuel pump - done for fuel efficiency, not durability.
Double injectors are twice as likely to fail as single injectors, done for fuel efficiency, not durability. A typical 6 cylinder has 6 fuel injectors, we have 12, not added for durability, added for fuel efficiency.
The engine "lugging" due to the 5th and 6th gearing is not healthy for an engine's longevity, again, engineered for fuel efficiency, not durability.

Now listen, Im NOT saying our engine is unreliable, what I AM saying is that not all choices were made for longevity, some for fuel efficiency which makes it LESS reliable, even if that means it goes from A+ to A on the reliability meter.

 

The guy is all hopped up on monster energy drinks turning these things out in his moms single car garage.


We just had a Tacoma wave thread, we were about due for a catch can thread.

 

If the engine is making the oil pressure it needs and there is no pre detonation, what is the problem with lugging?