[Camaro1973]

Originally Posted by JSH

Just got mine back from the shop with Phase II completed and will check CC (next to SC belt in pic) oil shortly to see. Not expecting a lot though.

Your badly low on SC coolant bud. Your going to be sucking in air into your loop if not already.

[Camaro1973]

Originally Posted by Vigilante375

Many of cars have had their warranties voided because of a catch can. You can search the internet and see this.

Manufacturers says the catch causes the engine to be oil starved.....OK. Just their way of getting around replacing an engine even though a vehicle had known oil pump issues, etc.

LOL What? Oil Starved??? That doesn't even make the least bit of sense.

[JSH]

Originally Posted by Camaro1973

I check mine every few hundred miles or so only because I had that overfill issue back when it was installed. I usually get a teaspoon or so every few hundred miles. So ya they work.
I have the Mighty Mouse wild w/10an connections.

Camaro1973 you raised an interesting question:

My coolant was at the res. cold fill line when at ambient temp, and is now as shown in this pic when at 108F. If this isn't right, someone let me know, thx (sorry for my rotated pic)

[Camaro1973]

Originally Posted by JSH

Camaro1973 you raised an interesting question:

My coolant was at the res. cold fill line when at ambient temp, and is now as shown in this pic when at 108F. If this isn't right, someone let me know, thx (sorry for my rotated pic)

The bottom is the outlet, so technically thats good. But the inlet (into res) is probably sloshing around air at that level and bubbles can be sucked into the res and therefore be sent right down into the bottom.


See a pic of Stephens. This is the correct fill.


https://www.camaro6.com/forums/showthread.php?t=587347

[Camaro1973]

Originally Posted by Camaro1973

The bottom is the outlet, so technically thats good. But the inlet (into res) is probably sloshing around air at that level and bubbles can be sucked into the res and therefore be sent right down into the bottom.


See a pic of Stephens. This is the correct fill.


https://www.camaro6.com/forums/showthread.php?t=587347

If was me, i would remove the Intercooler pump relay, and jump the circuit and turn the pump on and watch the res level. Maybe even remove cap and re-bleed it.

[JSH]

Originally Posted by Camaro1973

Maybe even remove cap and re-bleed it.

I'll do that tomorrow, thx

[UnknownJinX]

That's really not much oil, considering how much air is going through your engine in that 3000 miles.

If it's something critical, there would be maintenance measures for it, like walnut blasting you see on BMW and Volkswagens.

Personally, I am still meh on the whole situation, at least on NA cars. Somebody posted a pic of intake valves on a Silverado with 100k miles and 0W-20 oil without catch can. It's really not that terrible, especially for something you don't even see normally anyway.

[2SS Capt]

Originally Posted by UnknownJinX

That's really not much oil, considering how much air is going through your engine in that 3000 miles.

If it's something critical, there would be maintenance measures for it, like walnut blasting you see on BMW and Volkswagens.

Personally, I am still meh on the whole situation, at least on NA cars. Somebody posted a pic of intake valves on a Silverado with 100k miles and 0W-20 oil without catch can. It's really not that terrible, especially for something you don't even see normally anyway.

The way I look at it, I'm getting about 1/2 oz every 700 miles or so, that adds up to about 72 oz of oil at 100,000 miles, I'm sure some still gets past the catch can, but if I can prevent 72 oz of oil going over my intake valves, they will be in significantly better shape at 100k than without a catch can...

[Camaro1973]

Originally Posted by UnknownJinX

That's really not much oil, considering how much air is going through your engine in that 3000 miles.

If it's something critical, there would be maintenance measures for it, like walnut blasting you see on BMW and Volkswagens.

Personally, I am still meh on the whole situation, at least on NA cars. Somebody posted a pic of intake valves on a Silverado with 100k miles and 0W-20 oil without catch can. It's really not that terrible, especially for something you don't even see normally anyway.

It doesn't take much oil to start collecting on the back of your valves.


2 Ounces of oil going into your intake is ALOT of oil. That's 2 ounces too much.

[CanadianVetZL1]

Has any engineer from GM or other auto manufacturers said they should be there? Clearly they must know this happens. Is it possible they have planned for these exhaust gasses into the intake?

I ask this as they are in the hook to warranty these engines and have had decades to develop solutions. Catch cans can be drained directly back into oil pans eliminating the need to empty them If this was such an issue wouldn’t they do that?

I have read some messages but little data on the issue

Thanks

[Trak-Toy]

Originally Posted by CanadianVetZL1

Has any engineer from GM or other auto manufacturers said they should be there? Clearly they must know this happens. Is it possible they have planned for these exhaust gasses into the intake?

I ask this as they are in the hook to warranty these engines and have had decades to develop solutions. Catch cans can be drained directly back into oil pans eliminating the need to empty them If this was such an issue wouldn’t they do that?

I have read some messages but little data on the issue

Thanks

The manufacturer isn’t worried about engine damages caused by this blow-by oil vapor because by the time they could (might) cause catastrophic failure, the car will long be out of warranty. That fluid isn’t all oil BTW. It’s a mixture of unburnt fuel, water and oil mist. You definitely don’t want to pour that back into your oil tank.

I would use one on my LT4 without hesitation if I was certain they wouldn’t deny any warranty claim I might make. But, with these oil pump failures, I won’t risk it. Be just my luck my oil pump will fail and GM will deny my warranty claim due to the Catch Can. I have a couple more years of warranty left so no CC for me.

[UnknownJinX]

Originally Posted by 2SS Capt

The way I look at it, I'm getting about 1/2 oz every 700 miles or so, that adds up to about 72 oz of oil at 100,000 miles, I'm sure some still gets past the catch can, but if I can prevent 72 oz of oil going over my intake valves, they will be in significantly better shape at 100k than without a catch can...

But how much air and fuel has your engine used at 100k miles? That amount of oil is like a drop in that massive amount of air and gas you have used.

It's not like every drop of that 72 oz will end up on the back of the valves, and there is a certain temperature the valves(and other parts) will have to be in for the deposits to form, too. Too cold and the deposit won't form, and too hot and the oil droplets wouldn't bond with the metal surface.

Originally Posted by Camaro1973

It doesn't take much oil to start collecting on the back of your valves.


2 Ounces of oil going into your intake is ALOT of oil. That's 2 ounces too much.

There will be collection, no doubt, but if it doesn't degrade the performance significantly (which many other things will do), then why would that matter? Do you take off the heads everyday to marvel at the intake valves? It's not something you can easily see. For BMW and VW, it's a real concern because they legitimately affect driveability.

And for ZL1 and 2.0T folks, I think potential collection and ability to interfere with intercooler's performance could be a better argument, if someone has unbiased data on that.

Then again, more and more family cars are running at the downsized turbo trend, and you see some of them running close to 20 psi boost stock. If that's a concern, we should see something going on there, too.

[Z OH 6]

Originally Posted by UnknownJinX

That's really not much oil, considering how much air is going through your engine in that 3000 miles.

If it's something critical, there would be maintenance measures for it, like walnut blasting you see on BMW and Volkswagens.

Personally, I am still meh on the whole situation, at least on NA cars. Somebody posted a pic of intake valves on a Silverado with 100k miles and 0W-20 oil without catch can. It's really not that terrible, especially for something you don't even see normally anyway.

To each their own, I don't want it in my intake and intercooler bricks, and ultimately baked on the intake valves.

I wouldn't bother on a NA engine.

[Snowwolfe]

If I keep this car beyond the 5 year/60,000 warranty then I will investigate a catch can.