Waste Oil filter

Diesel has hit $5.55 here locally so I'm looking at using waste oil. How does everyone filter this? I've read to use a 1 micron filter, maybe not first, but last.
Ideas and pics greatly appreciated.

Thanks

There are about 100 different ways to filter waste oil from a centrifuge type system to sitting 2 five gallons on top each other with a screen in between. One way that seems fairly popular is to have to chemical totes I think they are around 150 gallons or so and build a filtering system between the two and set the dirty oil tote on top the filtered oil tote and let gravity do its job. I would guess others on the site will chime in and let you know what type of filters to have between the totes.

What method do you use? Any pics?

$6.30 here, if the ol girl is moving this summer its on waste oil mix, sad to say.

Ive been using an old airdog lift pump with twin filters (water sep and 2 micron final filter), but it seems the motor gave up on me just this afternoon. I set it up with a draw pipe and hose to pull out of any drain pan or bucket, and pump/ filter it into a 55 gal drum settling tank. Then, i just flip the hoses around to pull off the top layer from the barrel and into the truck/ jerry can. That way it gets filtered in, settled, then filtered on the way out too, so by the time its got to my injection pump, its been through a settling and 7 fuel filters, two of which are also water separators.

I suppose a centrifuge is best, but this was free out of stuff I had laying around. Im going to pull the airdog apart over the next few days and either repair the motor or, more likely, rig it up to run off a drill or some other bigger motor. it was a little sluggish pulling used 15-40, but that airdog is over 13 years old and had over 200k miles on it, so no real complaints...

It's times like this that make me wish I had a multifuel! Diesel is about $5.30-$5.40/gallon here, usually a full dollar more per gallon than gasoline

Does anyone have pictures of a centrifuge filter setup? I've never seen one - only read about them here.

Great info.
When you have a chance would you mind shooting a pic? Doubt that I would use a 55 gal but the concept is cool.
Did you do anything to the truck to help it run on the oil? Different fuel filters? IP fuel setting change?
Do you mix the oil with diesel? I have 2 tanks and am considering using one for the oil and the other for diesel.

The engines multi-fuel capability is a result of its internal design and operating cycle, so no alterations are necessary. As built, there was a fuel density compensator, the dreaded FDC, on the injection pump which made adjustments to the fuel rack based on the fuel flowing through it. Its whole reason for existing was not to alter what the truck could burn, but rather ensure repeatability/ seamlessness for the driver. Essentially, when a less energy dense fuel was flowing through it, it would alter the pump to inject more fuel, thereby ensuring that the driver did not have to alter how much throttle he applied as fuel concentrations shifted. Since these have all hopefully been bypassed by now, its up to us to know we may have to press the throttle a little more or less depending on whats flowing, but its really minor and not a big deal.

I have spin on filters on my truck, but they are just the standard ones Jtonkas kit uses, nothing special there.

I'll still be running as much pump diesel as necessary to thin out the mix. In all but the most extreme of climates, a tank full of straight waste oil, especially 15w-40 would be a struggle to move, especially for the in-tank lift pump.

HDN said:

It's times like this that make me wish I had a multifuel! Diesel is about $5.30-$5.40/gallon here, usually a full dollar more per gallon than gasoline

Does anyone have pictures of a centrifuge filter setup? I've never seen one - only read about them here.

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https://usfiltermaxx.com/en/wmo-cen...ge-2400-g-industrial-grade-120-240-volts.html. study this website and links. BTW they are back ordered about a month. Im waiting for mine.

Centrifuge is really the only safe way to go. The metal particles in used engine oil can ruin your injection system really fast. Even filtering down to 2 microns still allows small metal particles through that will damage your pump and injectors.

Here’s my VERY cheap filter setup. It’s a 1 micron filter sock that “sits” in the lid. I pour the oil in it and it drains out into my 55gal barrel. I then pour my diesel and gas both through the same filter to wash it out so to speak. I mix a 55gal batch at a time.

This is what I’ve been running…

65% wmo (36gal)
20% diesel (11gal)
15% gas (8gal)

As of yesterday, local prices, a 55gal batch came to roughly $1.68/gal

I do the same thing as Daneger21. Only other thing I do is I have a heavy duty magnet in the filter sock to catch any steel shavings that may go through the sock. I don't add diesel to it though, just some gasoline. 10 gallons of gas to 45 gallons of wmo in the warmer months and 25 gallons of gas to 30 gallons of wmo in the colder months. Been working pretty good so far.

ldmack3 said:

Great info.
When you have a chance would you mind shooting a pic? Doubt that I would use a 55 gal but the concept is cool.
Did you do anything to the truck to help it run on the oil? Different fuel filters? IP fuel setting change?
Do you mix the oil with diesel? I have 2 tanks and am considering using one for the oil and the other for diesel.

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I can say these trucks will run on straight wmo no problem, it just doesn't have as much power so it'll struggle more than usual. I've done it before in the past when I was unemployed and no money. It's not good on the pumps, but it'll run, at least when it's warm out. In the winter, I'm sure you'll burn the in tank pump out. I have too many 55 gallon drums and 2 IBC totes for wmo. From my experience, wvo is too difficult to get in my area, everyone gets paid to recycle it, but wmo is easy. I checked FB marketplace and it always has free wmo. I got a hook up at a race track since they pay to get rid of their oil so we save each other money. Plus, that oil they have is usually cleaner, and better than what I run in my engine! I found another hook up from a garage, guy has to pay to get it pumped out. I paid $25 for his IBC tote and when I empty it, I call him to see if the other one is full and then I go there and he uses a forklift to swap them out for me. At one point I had over 800 gallons of wmo. I'm down to 180 now, so time to refill them. I wasted too much money on electric pumps. They never seem to last. So my final investment was a regular hand crank pump I got off Amazon and I drilled a hole in the shaft and put a bolt in it so I can use my cordless drill. Makes pumping oil a breeze and two sets of batteries will transfer 170-190 gallons and that's with a 10-15 ft 1" OD hose on the pump.
I did find that in order to transfer the oil quicker through the sock filters is to already have some gas mixed with it. Been doing this for a year or so now but it's been the cheapest and easiest way. If you do use drums, keep one for dirty oil and one for clean oil.

when I get my set up going (back ordered on the centrifuge) I plan on using it mainly for my tractors in the summer. I suppose I can give the Kat Killer (deuce) a taste of "black diesel" too.

I know this is an old thread on a very controversial subject.

I bought my M35a2 pretty much for its multi fuel capability. I have not put any diesel in Henry in 12+ years and have put over 20K miles on waste oil. I'm not claiming a record, but I am saying I don't run diesel. I have made no mods or made any adjustments to my fuel injection system.

Me in red below

ToddJK said:

I can say these trucks will run on straight wmo no problem, Yes they will, but I blend with old gasoline or Jet fuel before filtering. I mix about 15% thinning agent to about 85% wmo. WMO for me is old motor oil, old ATF, any gear lube or hydraulic oil ... if it's made from petroleum and in a liquid form, I'll burn it.

it just doesn't have as much power so it'll struggle more than usual. Not true at all in my Deuce. I get 13 to 15 mpg's and Henry will give me 60 MPH ... but he's bobbed and carrying a lot less weight. I live in the hills of NoGa, and sometimes have to catch a gear.

It's not good on the pumps, but it'll run, at least when it's warm out. In the winter, I'm sure you'll burn the in tank pump out. 13 years, over 20K miles ... NEVER burned out any pump, and never failed to start. And don't think it doesn't get cold up here in the hills of NoGa.

I wasted too much money on electric pumps. They never seem to last. So my final investment was a regular hand crank pump I got off Amazon. I did a LOT of reading before I decided 1) on trying to use wmo for fuel, and 2) buying a military vehicle. I bought a pump and filter socks from Duda Diesel over in Alabama. I use a lawnmower engine (3.5 hp) to run the pump, never burned one of them out either. I have converted my mower engine to run both gasoline and propane, in case I can't get gasoline. I made a filter housing from an old fire extinguisher.




I did find that in order to transfer the oil quicker through the sock filters is to already have some gas mixed with it. Been doing this for a year or so now but it's been the cheapest and easiest way. My process hasn't changed in 13 years/over 20k miles. I collect the waste petroleum product in a tote, not filling the tote more than 3/4 full. I dump in the thinning agent, and sparg the mix using a 4 foot length of 1/2 inch pipe hooked up to an air compressor. Then I let the tote sit in the heat of the summer and sparge it a couple more times. During the summer and before I sparg, I use the valve on the bottom of the tote to drain out whatever water and crud heavier than diesel that has collected on the bottom. Sometime in October, I'll run a viscosity drip test, and adjust the mix as needed. Then I filter the the mix into Henry's fuel tank and a clean tote. I use 2 socks, a five micron and a 2 micron. Make sure to put a magnet in the 2 micron.

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How much waste oil does everyone have? You can blend it with diesel and it doesn't require any treatment. I have dumped oil changes straight into my tank on my M1008. That's 2 gallons into less than 20 for the 6.2 liter diesel. It ran no differently than normal and made no smoke. It did not cause any impact on the fuel filter that I noticed.,

87cr250r said:

How much waste oil does everyone have? You can blend it with diesel and it doesn't require any treatment. I have dumped oil changes straight into my tank on my M1008. That's 2 gallons into less than 20 for the 6.2 liter diesel. It ran no differently than normal and made no smoke. It did not cause any impact on the fuel filter that I noticed.,

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I have about 1,500 gallons of "waste petroleum products, WPP" and 275 gallons of clean Jet Fuel for blending.

Almost all of my WPP came from auto repair shops of some form. I wouldn't put ANY of it straight into my truck's tanks.

The Jet Fuel came from an airport not far from me. The fuel had been on a tank truck for some time and was deemed "out of date". The airport needed to get it off the truck and couldn't find anybody for a long time. Somehow they got my name from a friend of a friend who knew somebody who was collecting waste oils.

I have a 25 gallon drum that sits above a 35 gallon drum. I have an oil filter mounted in between. I have a spigot near the bottom of the 35 gallon drum. Anything heavier than the oil settles at the bottom and doesn't come out the spigot. Gravity doesn't move my WMO through the filter so I have a tire valve on the lid of the 25 gallon drum. A little air pressure pushes it right through.