So say you burned oil instead of diesel for a year, if you filled up your truck once a week at say 25 gallons at 4 bucks , that's 5200 dollars isn't it? I failed algebra but I'm pretty sure that would cover my 2000 dollar engine...:humm:

No dog in this fight. However, were do you get a Cummins for $2000.00?

for me its about once every two to three weeks. i only drive about 25 to 30 miles a day

in one year i could spend about $2250+ on fuel if i wasn't running black diesel

this would cover the cost of injectors and maybe a new CP3 every year if i had too. fortunately my LB7 made it to about 120K mikes before injectors where needed. granted i only had it for the last 50K miles, but still at this rate i could be pocketing 6 grand even after new injectors & CP3

short story long, i will continue running WMO in my truck

here is an interesting tread on WMO and centrifuges

Why Centrifuge? - Diesel Forum - TheDieselStop.com

seems most dont like RUG but mine "loves" it when it thin with it. no gray exhaust with the RUG, only without:w2::tnt:

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^^ oh, and i forgot to mention...

i have EFI Live with the 5 position switchable tunes. two of my positions are for when i run WMO. PSI & timing differences. this may explain why mine runs just like diesel and hardly even smokes. i could easily pass one of those diesel "smog checks" on WMO

Excuse my ignorance......what does RUG stand for?

RUG = Regular Unleaded Gasoline

its an unofficial internet term, not used in normal speech

Thanks.......what ratio due you use to thin with?

dont have anything set in stone but lately i have been doing 3~4 gal of RUG to 20~22 gal of WMO.

just trying to make it closer to the viscosity of diesel

I got one I'll sell u for 2000 :w2:

I got my 12 valve for1900 buck in a 91 d 250, got everything from the radiator to the driveline. Found it on Craigslist

my centrifuge is on order!:jump:

great article on filters for the duramax

Duramax Fuel Filter, Duramax Diesel Fuel Filter, Duramax Fuel Filter Change

about half way down

"Research reported by sources such as Heavy Duty Trucking in an article entitled “Finer Filtration: Is it the Answer” (October 2003, page 86) and todaystrucking.com “Your Engine’s Tiny Problem” (October 2003) indicate that particles larger than seven microns can cause excessive wear in a high pressure fuel system such as the one in the Duramax. Both of these sources reference SAE Paper 980869 and Detroit Diesel Engine Requirements Manual 7SE70 0209"

What no link :pca1:

Interesting that opinions and statements are different on the other side of the pond.
Let me seek for the opposing european data sheet.
What does excessive wear mean in this case? No harm of 6 microns and smaller- or just wear...

ISO 19438:2003 Diesel fuel and petrol filters for internal combustion engines -- Filtration efficiency using particle counting and contaminant retention capacity

as for the failures in africa, how were they preparing the wmo before they burned it? im sure it wasnt "filtered through a goat skin" as someone put it (i admit i laughed), but were they filtering it or just mixing it in?

you said that it was already added to fuel at stations. im sure that whoever was adding it didnt care too much about the cleanliness of the fuel they were selling. when corrupt people want to make a profit, they usually dont care how they make it, or about the people they make it from.

im not arguing with you by the way. Im sure wmo did do lots of damage in africa, im just curious as to why it was so widespread there but seemingly not in other places

Because the rest of the world (speaking for europe) can neither afford a new injection pump nor injectors.
Africans simply do it because they have neither knowledge nor an idea what they do. Oil is oil, right? So they also use engine oil in their 2 stroke engines because engine oil is cheaper, or 2 stroke oil not available and , hey why not burning WMO-oil is oil, right? therefor they burn WMO in their diesels-fuel is fuel, right? The only minor disadvantage of engine oil is that it is not intended to burn.

So causes for that are different, but all of them are stupid or better expressed uneducated. (An air filter hinders air entrance- so why not getting rid of it? That is, as funny as it sounds, the way of thinking of african people)

But don't worry - we have them in the forum too :D

i'm sorry, where are my manners?

Raw Power Centrifuge - Raw Power Centrifuge - WVO Centrifuges - Products

600RPM model with the "power Booster" add on

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that one is open to interpretation. not sure my self. just thought it was interesting that it said "7 microns" which seems a bit high in my opinion

Do you mean 6kRPM? 600 seems slow.

your right, 6,000. just missed a "0"

I have been eying one of these up I would like to know how it works for MWO

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.

U have my attention

Centrifuges are standard equipment on the paccar mx engines

Google Diesel Craft, they have various spinner type centrifuges, for sale.

So I'm gonna guess the rest of the world also doesn't have the extra cash to spend on elaborate filtration systems. :humm:

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The smiley face was located differently in Dieselstinkr's original post, my editing missed removing it.

diesels running waste motor oil as a fuel
 

i own a dodge ram 12 valve cummins and use the waste motor oil. i have to say it runs better on waste motor oil than diesel. the only problem about black diesel is that you have to let it settle. when i first started making black diesel i use a 1 mircon filter and filtered the used motor oil 5 times through the 1 mircon filter. than i added things in it to thin it, to take the water out of it and to boost the cetane level. than i put in a 5 gallon bucket to use. after about 1 good week i noticed black heavy oil on the bottom of the bucket and my stomach turned. all that work for what slime at the bottom of the bucket. i then i thought, let me let the black diesel settle for about 2 weeks. than i took off the top and put it in another container and got ride of the other heavy oil on the bottom of the container. than allowed the good stuff to settle for another 2 weeks. there was still stuff at the bottom but nothing like there was in the first batch. than i repeated the process and let it settle for another 2 weeks. same thing but less this time and finally agian for anther 3 weeks and the bottom was clean. to summarize this point. it is important to let the brew settle because if you don't that black sludge is going to build up on the bottom of the fuel tank and be nasty. you want clean oil at the bottom, if you can see the bottom of the bucket the oil or black diesel is ready to use. i hope this helps you guys. good luck from cummins

What are you guys using for a pump to pump the used oil through the filters?

I use a 3/4 in water pump from harbor freight

the core of the earth:tu:

filtering waste motor oil into black diesel fuel
 

i think the best way to filter is by gravity for one its a free movement of liquid and two it wouldn't force small particles through the filter. i first use a 10 micron filter and than a 5 micron and finally a 1 micron filter and filter it 5 times through that filter. it takes a while but it is worth the wait. than after you put your additives in, let the brew or black diesel settle for a minimum of 2 weeks and pump off the top and get ride of the bottom. than have the top settle for another 2 weeks and do the same that should be enough settling. than use a test sample. pour the brew in a water bottle that is dry and pull off the fuel filter on the motor dump out the diesel and pour in the black diesel that you just made and spin it on the motor and crank the truck or diesel car. if the truck starts great remember that recipe for the future. if it don't work have to go back to the drawing board and start over. but remember this. if the drew you made is the sample thinkness and is flows the same as diesel thats its fine. just dump 4 gallons of your brew ina a 5 gallon bucket, add a gallon of diesel and get cetane booster. that should do the trick. mix the liquid allow for the diesel and cetane booster to work for about a week and retry. i hope that solve some questions from your pal cummins

Thats a lot of work I dont think there is a need for all that just my 2 cents