[Sirrotica]

Hello Tom, I'm very famliar with the Oberg tattle tale filter system, good friend of mine ran one on his Gaerte engine in his late model dirt car. When he got the first engine from them he was told to check it after every night of racing. The residue found there would indicate the engines condition or if there was something going south it would be caught before it ended up in catastrophic engine failure.

He caught roller lifter shrapnel in it and headed off an expensive repair by monitoring it weekly within a year after he installed it. The point I made in one of my posts was that the top of the filter roll can be read the same as an Oberg filter can. Yes your going to have to replace the filter element, but anyone finding debris in any filter is going to have to replace or wash filters. At $3.25 cents per single element (less if you buy in quantity) I believe no one would be going broke replacing the media as opposed to washing a screen out.

The Oberg is a short term filter meant for dyno runs or competition engines, it has to be inspected routinely because it has a small capacity. Not practical for a street driven engine, IMO. An Oberg nor a full flow filter will also not absorb any condensation, with a TP system it can absorb up to 6 oz. of water, preventing any sulfur based contaminants from turning into acid further degrading the engine oil.

The filters I'm talking about is a long distance filter that will filter oil until you change the element, or if you neglect the media it will plug solid and defer the oil back to the full flow system. I've only seen one filter completely blocked. It's easily monitored by feeling the outside of the canister after the engine is warm. If the canister is cold the filter is totally blocked.

Tom, my wording may not be technically correct, however I believe anyone reading it got the meaning of what route the oil in the by pass system was taking. If not, they can just look at the diagram I posted for clarification. Sorry, I never claimed to be as well educated as you, just a 12th grade education, 2 years of Vo Tech, and 45 years in the school of hard knocks.

My reference to 1 micron was at 98% efficiency, I have no idea of an Obergs efficiency rating. It may be 28 microns at 50% or 75% efficiency. The long strands in virgin paper is ideal for filtering oil, I don't believe a screen will have the same efficiency rating as virgin paper fibers will.

Why in your post do you mention arguing? I have no need to argue about anything I have posted. I don't believe that any size particulate that is removed from motor oil be it 1 micron or 25 microns is all good. I know when I talk about filtering my motor oil that the less particulate it has in it the happier I am.

One of the combustion contaminants produced is carbon, and carbon is hell on anything metal that it rubs against. The less in the oil the better I like it.