i will post results as soon as i can. still waiting for it to show up.

I can tell how it works.

I've seen these things in mostly every military truck beeing used for overseas. They work in the oil bypass system and are filtering about 10% of the complete oil volume. These centrigugal filters are serviced every standard oil change(!).
So there is no extension of oil change interval- because they are an integrated part in the engine.

So what is the inside of the filter looking like?
The cartridge is almost full of soot and contaminants- it's like a thick cake, you can scrap out of the internal cartridge and this after only 5.000miles.
Do not forget these trucks have around 10gal of oil in their engine. They are twin turbocharged, every bank has their own charger. V12 aircooled and intercooled engine.

These filters are oil pressure activated, that means they need a certain oil pressure to work. A valve opens the filter above that pressure to prevent oil pressure loss during a hot engine with an idle condition- so in this way is another drop of oil pressure prevented.

I deal with Spinner II oil centrifuge filters on American big rigs (15 liter inline 6 water cooled, turbocharged) occasionally, and at 10-15k miles there's generally just a thin layer of soot on the inside of the spinner. If you let it go a few cycles it'll accumulate a bit, maybe 1/4 to 3/8 inch. Of course, these are on road trucks, that may be some of the difference.

spinner is OE mann & hummel as described on top- they have all sizes from 2.5 liter engines up to marine 2 stroke diesels up to 120.000hp and more. Depends on the application. They also can be used in parallel applications. :w2:

a quarter inch is a lot in my opinion...

I understand how they work I just want to know how good they work with one pass on used motor oil

I run plus 50 John Deere deisel oil with jd filter. Is it bad when I change my oil to put the used oil in my fuel tank. And only do it when I change my oil. I have a 2002 dodge cummins

Do you filter it again before you put it in your fuel tank? How long have you been doing that? You may have no problems, you may have problems right away, or something else might blow up before the waste oil has a chance to wreak the havoc that some claim is its destiny. Sorry, been seeing too many comic book movie previews. :tttt: Is it bad? ...Still arguing that one out.

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At 10-15k miles it's a thin film, about 1/32". If you leave it alone for 75-100k miles it'll build up to 1/4-3/8". Ought to work fine on one pass, I'd probably run a medium filter after it, just for extra insurance.

If the site will let me, these guys interested me on this subject.
http://www.deiselcraft.com/waste-oil...ing-system.php

I haven't done it yet I just heard about it n didn't know it that was wise.

Ive did a little looking around the net, there are some fairly cheap spinner centrifuges for cleaning up waste oil, some down to less than 1 micron.
I also like the idea of one of these spinner type centrifuges, plumbed into the engines oil system, to extend the life of the engine oil, alowing the time / distance between oil changes to be extended, realy worth doing on larger Diesel motors.