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CSI-WALLEYE

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Everything posted by CSI-WALLEYE

  1. CSI-WALLEYE
    Hey Mark, I like that we can disagree without being disagreeable. My issue with the catch can is not a personal conviction. I am simply pointing out that it has not been properly tested for its effect on valve deposits. My reason for starting the post was to look for evidence I may not have been aware of. I think that the fact that catch cans collect oil and gunk is encouraging but as in the cigarette filter analogy, it does serve as evidence of protection from deposits. The fact that no evidence is available, when it would be quite easy to obtain (for a company) is very troubling. The fact that many people are completely convinced is not at all persuasive. I hope that catch cans actually are working and that everyone that uses one enjoys long and trouble free service from their vehicles.
  2. CSI-WALLEYE
    It is the process you use on an outboard. You spray CRC or seafoam into the throttle body while the motor is running. Then turn off the motor and let it soak. Then do some highway driving. Just make sure you do not get any on the MAF.
  3. CSI-WALLEYE
    Sometimes real life is counter-intuitive. It would make sense that filtered cigarettes would be safer but they were (are) not. It would make sense that a catch can would reduce deposits but maybe they don't. They could have the opposite effect. That is why we use science to get answers.
  4. CSI-WALLEYE
    Not the best analogy. Filtered cigarettes did not reduce risk of cancer. You actually make the point for the skeptic side. You could remove the filters and see the tar and conclude you were safe but you really should have been looking at cancer rates not amount of tar in the filter.
  5. CSI-WALLEYE
    Thanks Nick. Are you doing anything special for maintenance? I am through with my free oil changes and am switching to Amsoil and will clean the intake once a year.
  6. CSI-WALLEYE
    Nick, are you running a catch can? If not, what is your mileage and are you having any problems?
  7. CSI-WALLEYE
    Don't you think that GM would care if their vehicles failed right after warranty? It would not do much for sales.
  8. CSI-WALLEYE
    I side with paracutin here. If you are performing a mod that causes a malfunction of a product and then hide that you made the mod so that you don't void the warranty that is wrong. That would be like using the wrong weight oil, wrecking your engine and then replacing it with the right stuff for warranty purposes. Wrong is wrong. I am still amazed that there is no scientific study available for this. I have have seen many youtube videos by mechanics and engineers promoting catch cans. However, you also need to examine their motives because there is a great deal on money changing hands in this industry. If I was producing a product like a catch can (that actually worked), the first thing I would do is a scientific study. It would be a great selling feature that would separate your product from the rest. For those of you using catch cans, does this not give you any pause?
  9. CSI-WALLEYE
    Thanks. I did not know about the problems regarding cold temperatures. I live in Alberta and we commonly get -30 degree daytime highs. So this would be an issue for me. I tend to buy vehicles and use them till the wheels fall of so I am meticulous about maintenance and am careful about what I do to my vehicle. This is why I made the OP. There is just not enough info out there to make me pull the trigger. Right now I am just going to run a quality full synthetic oil and clean in intakes with CRC.
  10. CSI-WALLEYE
    Just out of curiosity, you seem to be knowledgeable about the cans but do not use one. Would you be willing to share your reasoning?
  11. CSI-WALLEYE
    This is an example of how the fact oil is found in a can could be misinterpreted. If the can preferentially removed water as compared to oil, then the can could make deposits worse. Because theoretically, the water could soften deposits and if the can removed the water it could actually concentrate the oil being delivered to the valves. I don't think this is happening but the fact is that you don't know unless you perform the experiment.
  12. CSI-WALLEYE
    Hey Guys, I appreciate the responses. I am actually leaning toward buying an E2. However this is just as a safety measure because I have not seen evidence that cans cause any harm. However, correlation does not prove causation. I remain skeptical because there is no data to show reduction in deposits. Don't you think it is curious that there is an entire industry built on this piece of equipment with not actual study to show it actually works? Sure the oil in the can is a good indicator, but it shows that it catches oil and not that it prevents deposits. It could be that the oil is burned in the normal operation of the engine and that there is no difference between using a can or not. You really can't know the outcome until you perform a study designed to answer the question. By the way, I would not be surprised if they actually do work. I just remain skeptical until I see proof. Does that not make sense? I was hoping that there was a study out there that I had missed.
  13. CSI-WALLEYE
    I am new to the Forum and have a 2017 Sierra with 12K on it. I understand the principle behind the catch can and it makes sense. The problem I have is that there is a lack of evidence that it actually does what it says it will do. I have no doubt it removes water and oil but does it actually reduce the carbon build up on your valves? With the amount of money involved in selling an promoting these things I can believe that someone has not performed any type of controlled scientific study. It would be simple for a company with a fleet of vehicles to take a group on new trucks and have some with and without catch cans. After a certain amount of time or mileage you look at the valves and scientifically measure the amount of carbon on the valves. I have not been able to find such a study. does anyone know of the existence of one? Alternatively, does anyone on the forum have a GDI truck with high mileage that does not have any carbon fouling problems? How are you managing you maintenance? I have no problems installing a catch can but I would like some actual proof that it does what it says it does.
  14. CSI-WALLEYE

    'm running a similar experiment with a coworker. He and I have the exact same truck. He's maintaining his like you normally would...87 octane gas from wherever, regular oil changes, no valve cleaning, no catch can, etc. I'm running 89 shell gas exclusively, catch can, and BG induction services every 15k miles to maintain the valves. I have about 34k miles and he has about 50k. We're going to see how both trucks are doing around 100k to see if what I've been doing has been worth it or a total waste of money. I'll keep the forum updated as well.

     

    How has the experiment worked out?  Was the extra maintenance worth it?

    1. Silverado-Hareek

      Silverado-Hareek

      So far nothing ground-breaking to report.  I'm at around 69,000 miles on the odometer now.  He's closer to 100k.   I've stopped doing the BG induction services because at $350 a pop, it was getting to be expensive.  I think I did the last one at around 35k miles.  So far it's running fine without them.  The catch can is still doing it's thing so that's good.  My coworker has had a horrible time with his transmission.....some kind of sensor is bad and he may need to replace the whole transmission.  I don't think that's related to any maintenance though, I think he just had bad luck.  President of my company has a 2016 tahoe and he had the same transmission problem and replaced it at 130,000 miles.  But for my coworker and his truck, transmission aside, I would say the extra maintenance so far has not been worth it for me.  I'm thinking if it's going to make a difference, it would be past the 100k mark.  So I think it's still too early to tell.  I think the main conclusion you can make right now is that if you keep your truck no more than say 7 years and sell it around 100k miles, don't spend extray money doing a lot of extra maintenance.  The pay off is more likely for those that keep a vehicle for as long as possible and drive maybe 150,000 miles or more.

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