What did you do to your Ram today???

[ferraiolo1]

There are quite a few vids on YouTube showing valves of engines who had a can installed and those who didn’t.


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[Belvedere]

I'm not sure how the Hemi is setup, but my bigger concern is the IAC. If the PCV hose comes in before the IAC valve (assuming that's how Mopar does it) it can definitely cause issues.

Last year I inherited my mother's 68k mile '06 Malibu. Took it on a road trip this summer and noticed a rough idle. Throttle butterfly was nasty and took some effort to clean.

In other news my '64 has a PCV.

 

[HSKR R/T]

Interestingly, my 64' Valiant has a PVC system. Then again it was built in the LA plant.

My 66 poly 318 has a PCV

 

[HSKR R/T]

I'm totally okay with it. I've seen the inside of engines over 150K, and can tell you that the intake was not high on the list of problems.

Those who think it will make a difference use them.

I've seen no evidence of a significant difference. One part per million, I don't care.

If nothing or very little was ever collected in the catch can, I could see you point. Having owned multiple vehicles running catch cans, and seeing first hand the amount of stuff they catch, I will always use one.

 

[Rick3478]

There are quite a few vids on YouTube showing valves of engines who had a can installed and those who didn’t.

So how would you characterize that? Carefully designed scientific study controlled for all variables, or anecdotal? Critical thinking should be applied. If I thought there was any significant ROI, I'd buy the best on the market.

 

[ferraiolo1]

Go watch the vids. Do some research. Form an educated opinion on the mater.

I know how much I empty from the can. It’s no secret it keeps the valves clean, and reduces the need for valve cleanings.

Which is a thing. Vids on that too.

Yes it’s more beneficial for DI engines due to no fuel wash. But every engine can be if it from it.


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[HSKR R/T]

To think a catch can offers no benefit despite seeing how much they catch definitely isn't a sign of critical thinking

 

[Rick3478]

To think a catch can offers no benefit despite seeing how much they catch definitely isn't a sign of critical thinking

Of course it's going to "catch" a bunch of oil and condensate, and make you feel good about how good of a job it is doing. Until you realize that stuff didn't need to be "caught".

 

[ferraiolo1]

Everyone is entitled to an opinion. Even if it’s uneducated and wrong.


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[Dewey]

I know more than a few with well over 200,000 miles on Hemi’s and never had a catch can nor ever even been in a shop for engine issues.

Is it overkill? Depends who you ask. As with anything there are always extremes on both ends of a topic.

 

[Eighty]

Lol, I love the spirited discussions on this forum. Everyone feels so strongly about catch cans!
If you're preventing a couple of ounces of oil getting into your intake valves every few months, then it's a win. No matter how you look at it.
I could see some serious debate if a catch can had some kind of downside (like reducing performance, or if they were prone to breakage). But there's zero downside to installing it.

 

[HSKR R/T]

Of course it's going to "catch" a bunch of oil and condensate, and make you feel good about how good of a job it is doing. Until you realize that stuff didn't need to be "caught".

Yeah, I meanz who doesn't like all that extra crap coating the inside if your intake, throttle blade, heads, valves, and burning in the combustion chamber. If I take the catch can off, can my Hemi identify as a diesel for burning oil that doesn't need to be there?

 

[Idahoktm]

Lol, I love the spirited discussions on this forum. Everyone feels so strongly about catch cans!
If you're preventing a couple of ounces of oil getting into your intake valves every few months, then it's a win. No matter how you look at it.
I could see some serious debate if a catch can had some kind of downside (like reducing performance, or if they were prone to breakage). But there's zero downside to installing it.

There is one downside...it might cut into your beer fund.

 

[Dewey]

Yeah, I meanz who doesn't like all that extra crap coating the inside if your intake, throttle blade, heads, valves, and burning in the combustion chamber. If I take the catch can off, can my Hemi identify as a diesel for burning oil that doesn't need to be there?

I’m not saying catch cans are a negative thing. Just stating that there will be far different results depending on how the vehicle owner drives. If someone lets their truck idle a lot versus running a lot of higher rpm’s or driving mostly highway miles the benefit will be vastly different in each situation.

 

[ferraiolo1]

This was from my last truck, after 5k miles of winter driving with a short commute. Quite a bit of oil, it’s all mixed up because I didn’t let it fully settle. But that’s still a bunch of crap that wasn’t ingested into my combustion chamber and valves.

I’m going on a 1500 mile road trip next month. I’ll empty the cab before and after and measure it’s contents.

For science.

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[MikeyHo808]

Dropped my truck off at service for a “Service 4WD” light…that’s all I did to my Ram today.

 

[397STROKER]

Drove mine to get pit beef for lunch.

 

[BowDown]

I know more than a few with well over 200,000 miles on Hemi’s and never had a catch can nor ever even been in a shop for engine issues.

Is it overkill? Depends who you ask. As with anything there are always extremes on both ends of a topic.

Lol, I love the spirited discussions on this forum. Everyone feels so strongly about catch cans!
If you're preventing a couple of ounces of oil getting into your intake valves every few months, then it's a win. No matter how you look at it.
I could see some serious debate if a catch can had some kind of downside (like reducing performance, or if they were prone to breakage). But there's zero downside to installing it.

I agree, I doubt there's any real downside but I also doubt there's much real up side
My 2003 HEMI broke a valve spring at 277K miles, I limped the truck about 2 miles and It shut off in my driveway. When I tried to restart it, the open hanging intake valve allowing the combustion process to occur in the intake and blew the floor of the intake off.







Not much oil there for no catch can and 277K miles and never one mechanical issue other than a water pump.
Broke the #8 cylinder intake valve spring, at least it wasn't # 5 or 7.


Now, my Z06 has one but for different reasons. My aftermarket valve covers didn't have adequate baffling and at runway events where I was at high rpm's for an extended period of time, I would get oil through the pcv system (upgraded oiling as well). This car needed a can, I don't think the truck does

 

[ferraiolo1]

Drove it to work while it’s clean

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[Rick3478]

There is one downside...it might cut into your beer fund.

When you don't have unlimited funds, you gotta put it where it will do the most good...