Another great initiator to keeping sludge off your valves...

https://oppositelock.kinja.com/ditch-that-pcv-system-before-it-is-too-late-1634156554

From my understanding, there are certain things we must do with this engine to keep the valves clean....

- Good quality synthetic (true Amsoil, Redline, or Group IV or V stock oils better than the rest, including Mobile1) will do more to prevent wear from piston rings, which will mean less oil blow-by.
- Good quality gas. This means TOP TIER (i.e. - Shell, Texaco, and Chevron; this doesn't mean high octane, altho, plenty of people here use it) and/or NO ETHANOL. Top tier means it has detergents, which are good and all... but I think that ethanol gas is the bigger problem. No ethanol gas plus adding in your own "aftermarket" detergents into the tank could possibly be the best solution?
- Clean PCV valve.
- The best long-term "mod" you can possibly do is to add an oil catch can (with actual filter or complex baffling) to the PCV hose, and make sure that you empty the catch can at least twice as often as you change your oil.
- If buying a used GDI engine, people here will say that there's only ONE way to clean the oil deposits off the valve (other than tearing everything down and scrubbing by hand), and that's some kinda $500 walnut cleaning job. I still think that pouring Seafoam into the intake vacuum line could potentially clean better than NOTHING, but I'm really not certain. Pouring Seafoam into the gas tank of a DI engine certainly won't do anything good (or bad, really). What will it do when sucked into the vacuum line leading to the intake manifold?? Some of it has got to make it to the carbon deposits, no? I really doubt pouring Seafoam into the crankcase oil is going to make it all the way to these valves that are experiencing the deposits. But if Seafoam could potentially be poured into brake booster line, and fed into the intake where it might possibly meet these dirty valves... then that's something people should consider, for certain.

But I'm definitely concerned about these new direct injection engines, and would like to do everything I possibly can to prevent a complete tear down of mine!!

Thoughts? Concerns? Nit-pickers??

 

I guess this is an alternative to Seafoam.... isn't it applied the same way, tho?

Keep PCV clean with a oil catch can - and then use top end cleaner from either 3M or amsoil power foam like I have used in the past. Follow the directions on the power foam closely. I kinda sorta did - but then the car shut off and was smoking really bad because it finally got sucked up but it cleared out and been doing great since.

 

I might change the oil in my car this weekend, since I just bought it.

Will more than likely use some Seafoam in the intake to clean the valves, since it's tried and true (... and not as caustic as Berryman's B-12)...

Apparently there's some new "CRC Intake Valve & Turbo Cleaner", which is used the same as Seafoam. Hopefully I can find a comparison video on those two, but I've actually already got a can or two of SF anyway....

 

Put seafoam in vacuum line that leads to intake [valves]....

And my Rio smoked more like a car with 80,000 miles or more instead of a car with under 40,000 miles.

Considering the severity of cleaning GDI intake valves, I will likely use another application very, very soon.

The smoke will get less and less with each use.... this is how I've always known that Seafoam works. It's amazing to me that people have even considered putting Seafoam in the gas tank. I've never once used it like that and don't know too many other people who have ever heard of using it to "smoke out" the intake valves. CRAZINESS!

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Anyway... I'd still like to set up an oil catch can. Does anybody have any recommendation for our cars?? Installation guide? Any extras needed to purchase, like more hoses?

 

Put seafoam in vacuum line that leads to intake [valves]....

And my Rio smoked more like a car with 80,000 miles or more instead of a car with under 40,000 miles.

Considering the severity of cleaning GDI intake valves, I will likely use another application very, very soon.

The smoke will get less and less with each use.... this is how I've always known that Seafoam works. It's amazing to me that people have even considered putting Seafoam in the gas tank. I've never once used it like that and don't know too many other people who have ever heard of using it to "smoke out" the intake valves. CRAZINESS!

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Anyway... I'd still like to set up an oil catch can. Does anybody have any recommendation for our cars?? Installation guide? Any extras needed to purchase, like more hoses?

I don't understand the comment about smoking when injecting Seafoam - if you injected Seafoam on a brand new engine its going to smoke, as much as the smoke seen on an 80K engine.

 

I *know* the product works...

https://m.youtube.com/watch?v=WdT4DPFXIkM

The only issue is if ANY of the smoke comes from carbon deposits or not. I would have guessed that they do, but the guy in the video says that's a myth.

What's interesting is that he only leaves the mower off for 5 minutes and sees only tiny bit of carbon removed. When he later let's it sit on the piston for 20? 30? min, it removed almost all the carbon. When i soak an intake... I let it sit for at least 20 minutes, occasionally overnight.

Again, I have never done CONSISTENT experiments to determine if an older car will smoke more.. but that's how it has seemed so far. The product most definitely works, however. Most vehicles will see 10 to 30% increase in MPGs, where I even saw an increase of 70% on a Nissan Titan with 260k miles.

EDIT: Perhaps it really does come down to how long you let it soak. If you just pour it in without much soaking, they yes the smoke should be consistent. But longer soaking should she more smoke.

 

I *know* the product works...

https://m.youtube.com/watch?v=WdT4DPFXIkM

The only issue is if ANY of the smoke comes from carbon deposits or not. I would have guessed that they do, but the guy in the video says that's a myth.

What's interesting is that he only leaves the mower off for 5 minutes and sees only tiny bit of carbon removed. When he later let's it sit on the piston for 20? 30? min, it removed almost all the carbon. When i soak an intake... I let it sit for at least 20 minutes, occasionally overnight.

Again, I have never done CONSISTENT experiments to determine if an older car will smoke more.. but that's how it has seemed so far. The product most definitely works, however. Most vehicles will see 10 to 30% increase in MPGs, where I even saw an increase of 70% on a Nissan Titan with 260k miles.

EDIT: Perhaps it really does come down to how long you let it soak. If you just pour it in without much soaking, they yes the smoke should be consistent. But longer soaking should she more smoke.

Can you explain how you allow this product to "soak" the engines intake and valves etc.

That kind of MPG gain would place this product in the "miracle" category, ......... and we all know miracles don't happen with cars.

 

Many old timers get the engine to operating temperature and then trickle water into the intake while keeping the engine at around 3000 rpm, and that clears the carbon deposits very effectively, others also use brake fluid in the same way to clean and act as an upper cylinder lubricant.

 

I have also heard of old-timers (of which I am one) using automatic trans fluid for the same purpose. Sometimes referred to as 'The ATF Trick'.

 

is it necessary to have a catch can on my Kia Rio 1.4l Gamma petrol
as where i live that is the top model and they don't have GDI engine

 

Some would debate the need for a catch can on a GDI engine, but I'd certainly not bother with one on a non-GDI engine.

 

From the day I bought my rio with 3 miles on the odometer I've driven it like I stole it. I am HARD on this little car and it runs like a champ. I've never had the "pinging" issue. I run convenience store cheap 87 octane gas and put a bottle of Techron in the gas tank every 5,000 mile oil change. I have a K&N filter, I run full synthetic oil, and that's about it. Just over 100,000 miles on it now and it's running great. I don't think I have a buildup of carbon on the valves because I'm routinely at or close to redline during my 110 mile daily commute. My car does not smoke or use oil between oil changes. I'm averaging 29mpg on my commute, but when I'm on a long trip and just set the cruise control I get 36 - 38. My wife got 42.5 on a tank once. Only major repair was replacing the clutch and starter at 80k miles.

I'm interested in the 'catch can' now because my daughter will be the main driver of the car starting this spring. I might try the seafoam overnight soak. It's also due for a suspension refresh since the shocks and struts are worn out.

 

From the day I bought my rio with 3 miles on the odometer I've driven it like I stole it. I am HARD on this little car and it runs like a champ.

Me too.

I've got 14,000 KM on my 2016 Rio SX and only used Mobil 1 oil which is changed every 5K, as well as 92 octane Shell premium, and I beat on my car every single day. Rev the shit out of it, and drive it like a rally car. No issues with anything yet.

I actually drive all my cars like that.