Originally Posted By: electrolover
my pcv is not replaceable unless i buy a new valve cover so i spray a bunch of Kroil down the vacuum tube every now and then to clean it out. its best to just let it sit over night if you can and let the kroil do its work. oh and if you use kreen or MMO in your oil the vapors will help clean it out too
short of pulling the egr and cleaning out i dont know what else you can do. and it seems like 2 stroke oil in your gas would only make soot build up worse
The kroil is a good idea. I've used Seafoam in the past. I'm hoping for a more consistantly manageable preventative measure. Of course, this may not exist. The tcw3/gas mixture appears to burn cleaner as seen in FriendlyJacek's YouTube video. So cleaner burn would lead to fewer deposits I would think.
Originally Posted By: Quest
LOL! How does TC-W3 in gas gets into PCV (thus cleaning it)?
Think gas and crankcase oil inside engine doesn't meet under normal condition..
Q.
Blowby. Excessive idling increases fuel dilution as seen in uoa's. Although this is still a small amount in a well tuned engine. There may be an oil additive or "catch can" idea in my future but I didn't want to double post virtually the same question in two sub forums.
Originally Posted By: GeneralEclectic
I just can not understand why anyone puts stuff like this in their car. Especially the junk that people put in the gas tank, and even more so a product that was "designed in the 20's" (or whatever their advertising says) considering the potential for damage to oxygen sensors and catalysts. I don't use any of this junk in any of my four cars or 11 OPE engines (those do get Sta-Bil) and have never ever had a problem with carbon on valves, messed up plugs, clogged EGR, or any of the other alleged "problems" that these things are supposed to "prevent".
In particular, just think about why "SN" API grade exists. Because the additive package in earlier grades was believed to affect engine and emission controls adversely. If you believe this (I do) then how can you justify dumping 1920's-vintage oily goo into your gas tank? And
especially if there's no identifiable problem in the first place. I just don't get it.
You are correct, in part. I read something called the "spicer report" yesterday which researches the different fuel additives for diesel engines. It goes into the need for lubricity due to the now mandated use of Ultra Low Sulfer Fuel that diesels must use that removes the lubricating qualities of the old fuel. MMO performed poorly in this test. It actually increased wear in this test. A voa of MMO shows a lot of phosphorus, so over time catalyst efficency will be reduced slightly. But only slightly. Lubrizol's own test of catalyst efficiency proves that the difference is small between gf-4 and gf-5 oils. So I am discontinuing use of MMO due to the "spicer report" not for the phosphorus.
People put different additives in their tank to clean and improve performance. Some work, some don't. Even high quality gas like Chevron will lead to deposits over time and will need to be cleaned. Are we being a little anal, sure, but this is bitog.
Ultimately, what I'm looking for is a solution, whether through fuel or oil I don't care, to curb the upper cylinder/intake deposits that occur over time. Even with good gas.
Thanks again.