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WMO Filtering (How do you do it?)
So I've been googling this and I only seem to run across veggie oil filtering setups.
Can anyone share with me the way in which they filter their waste motor oil? I've heard people talk of filter housings that use sock type filters that can be washed or cheaply replaced. My thought was using like 3 filters in increasing filtration (like 10, 5, 1 micron or something). Links to places you bought your equipment would be appreciated. Looking to do this on a budget, this is not a serious commitment. The oil doesn't have water in it, but I've got a full 55 gallon drum so I thought about running a 20% blend or so this summer. Cut my fuel costs a bit and get rid of the oil. Not looking to run 100% WMO.
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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500 Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i |
#2
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1984 300D, 1972 LT1 Corvette, 2014 Artic White 3LT/Z51 C7, 2013 650i Convertible BMW, 1994 Kawasaki Vulcan, 1992 Yamaha Seca II and 1996 Dodge Ram 2500. |
#3
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This is simpler. Go on eBay and find a Seller that has 2 Micron Polyester Filter Bags.
Hang the Bag over a suitable container in a clean dust free area and pour the WMO or through the Bag and wait till it drains. Once it drains out of the Bag it will be filtered better than if it had gone throuh an regular Oil Filter. Physical Filtering will not remove anything disolved in the Oil; on solid particles. Put the filter Oil in a suitable Container with a Lid. When the Ditry Bag is done dripping put it inside of a Plastic Bag and Tie Wrap the opening of the Bag. People use the Bags for WVO also but WVO has never been filtered before and a 2 micron Bag would plug up quickly. So you would need several Micron levels of size to filter down to 2 Microns. The Polyester Bag Filters are supposed to be washable but for WMO I don't think that is needed or even possible with out spending on some Solvent. Washing the Bags after WVO use I simply don't know about. ,
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84 300D, 82 Volvo 244Gl Diesel |
#4
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to filter WMO, cut with some gas, like 1 gallon to every ten of WMO, (i get old gas from peoples boats and rv's and such for doing this, so its free) this thins it considerably, then pour through first a 1 micron filter sack, then a half-micron filter sack.....will run right through the sack quickly, store it dry of course, and use no more than 40 or so percent of this mix per tankful of diesel, and you are good.....filtering and using waste transmission oil and hydraulic oil in this method, this oil is much better to run filtered, as WMO, imho.....and u do not add gas to the atf or hydraulic oil......i have run 75 percent atf with no oil heating system in my 240, with no bad results.....i am sure that with the preheating system, atf and even wmo performance and burnability would increase considerably.....
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-Justin I believe in extreme automotive perfection whenever possible.......there is no such thing as "It doesn't matter" !!! 1985 300 CDT - 287k miles 1980 240 D - 340k miles With extras !! http://facebook.com/BenzDieselTuner http://facebook.com/SWFLAlternativeFuelsClub http://facebook.com/SWFLBenzClub http://SWFLBenzClub.com |
#5
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Support your filter bag or it will stretch beyond it's micron rating. Build a support tube with a bottom and sides out of screen.
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Greg 2012 S350 BlueTEC 4Matic 2007 ML 320 CDI 2007 Leisure Travel Serenity 2006 Sprinter 432k 2005 E320 CDI 1998 SLK230 (teal) 1998 SLK230 (silver) 1996 E300D 99k, 30k on WVO Previous: 1983 240D, on WVO 1982 300D, on WVO 1983 300CD, on WVO 1986 300SDL 237k, 25k on WVO (Deerslayer) 1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix 1983 380 SEC w/603 diesel, 8k on WVO 1996 E300D 351k, 177k on WVO |
#6
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I pump from wherever it is into my 5 gal "clean" drum through a disposable inline filter. Add diesel Then in the empty tank and fill with diesel let the Racor sort out the rest. If the restriction gauge shows high Ie; really thick batch of oil I thin it out some, though NC summer heat is keeping things pretty loose right now. Right now I have a tank of 8 gal used diesel oil and the rest No.2. The filter suction is only nominally different over straight No.2.
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1991 300d 2.5 Turbo OM602 |
#7
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I did a bit of research on this a while back. Havent done it yet, but if I were I would: cut the oil with RUG (20%). Let that settle. Centrifuge it, running it through a few filters (think water separator). After several circulations I'd run it into its final tank and cut it with diesel to desired %.
I'm no expert tho. That is just what I gathered from my research. Heating the oil, as mentioned previously, might aid in running it through any fuel filters. Some people will just dump it in the fuel tank straight from an oil change tho, relying on the oil filters filtration. Good luck!
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1984 300D w/ 370k mi. daily driver 1994 7.3 idi non-turbo 180k mi. |
#8
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I use a small centrifuge. Oil is heated by a 2400 watt 120V water heater element. Fluid circulation is accomplished with a Toyota Camry power steering pump driven by a 1 hp 120V motor. Pressure regulation is accomplished manually using a bypass circuit. Oil is heated to 155 degrees F with thermostatic regulation. Oil returning to the tank from the filter is dumped onto a flat plate and allowed to splash before returning to the tank to encourage moisture and light solvents to separate and evaporate. Oil viscosity prior to the start of cleaning is measured and adjusted using a drip test similar to checking paint consistency before spraying. Used gasoline engine oil or ATF is filtered separately from used diesel oil. Diesel oil has much more soot and the dispersants it contains work against the soot settling out. The end result is that obtaining clean waste diesel oil takes more energy so I filter it in smaller batches.
Most people seem to use the logic that the OE fuel filter is 10 microns so filtering to some nominal smaller micron size is sufficient. This completely neglects the quantity of smaller particles which may be present after filtering. Running a large quantity of small particles through a system designed for clean fuel will still cause wear. Just because 1000 grit sandpaper won't remove paint quickly doesn't mean it can't damage a finish. I have tried filter bags, paper, carbon, screen, and several other methods to clean oil and I feel the centrifuge is the most time and energy efficient to get oil to a point that I feel is acceptable. The only thing I'd like to change is to switch to a larger centrifuge to clean the diesel oil better.
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When life gives you lemmings... make lemmingade. Last edited by 1project2many; 12-02-2013 at 07:13 AM. |
#9
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I use old jeans with no holes,and cut my oil with 50% diesel then filter.I burn 25% oil in winter,and 50% in summer
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1999 w140, quit voting to old, and to old to fight, a god damned veteran |
#10
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if you are able i would start at a heated bowl type centrifuge and work backward from there as to what you can afford.
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"NEW" 1984 300D TD needs some love |
#11
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#12
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Quote:
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1984 300D, 1972 LT1 Corvette, 2014 Artic White 3LT/Z51 C7, 2013 650i Convertible BMW, 1994 Kawasaki Vulcan, 1992 Yamaha Seca II and 1996 Dodge Ram 2500. |
#13
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Quote:
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#14
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I think if it was warm enough you could probably most, if not all the suspended particles from the WMO.
so in your 84 300D you are running 70%WMO to 30% RUG? do you think that has to do with your weather and the viscosity of the final product?
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"NEW" 1984 300D TD needs some love |
#15
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Ive been doing this for years. I pump my oil into a tank atop a shelf. I let it gravity feed through two water separators and coarse filters down to another drum. That drum has a pa biodiesel centrifuge atop it. After the drain down, 30% winter, 60% in the summer, I top off with diesel and run the centrifuge for 6 hrs. Great fuel with no issues. I pull and clean the centrifuge immediately after shutting it down.
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Paul 6.2 diesel orphanage - "cherish the diesel vans" 1984 G20 6.2 diesel 140k 1992 G30 6.2 diesel 229k 1995 G30 6.5na diesel 140k 1988 E350 7.3na diesel 435k 1994 k3500 6.2na convert ???? 1992 300d 2.5 turbo 360k 1998 R3500 5.9 12v 185k 2003 F650 5.9 24v 190k Countless gassers |
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