scr8pdo
Member
As the title says, has anyone tried black diesel AKA old engine oil blended and filtered?
I have been looking into this as an option as I have virtually unlimited access to this stuff as in a breakers yard, and have heard so many different opinions on this subject:
For a start, there has been talk of there being metallic particles in the oil, but surely some of the filtering techniques would surely sort this problem, some people are saying a definate NO NO and others are saying its fine as long as you do this or that, others say they would use in an older diesel but not in a common rail etc etc etc.
I will tell you here and now my very little experience with it, I was using an old car last year that had a few weeks tax and test left on it and the car was due to be scrapped at the end anyway, it was an old R reg Citroen Xantia TD btw, I was also running it on the very least fuel I could get away with as I didnt want to be spending any money I didnt need to before I ran it in, well me and my mrs were driving round Wigan when it coughed to a halt out of fuel, I checked the boot for a jerry can to go and get a gallon of diesel and all I had was a 5 litre Castrol GTX bottle full of used filthy black engine oil I had drained from my Iveco recovery truck, I thought what the hell and poured it straight into the tank, I connected my booster pack up, primed the filter bulb up until I was getting fuel out and spun it over, it fired into life no problem whatsoever.
Now I wouldnt condone doing this on a car you were planning on keeping, remember this was filthy black sludgy old engine oil with a good 12k on it if not more, but it DID run and ran very very well, BUT I dont rekon the fuel filter would last too long running stuff that dirty through it.
Now I have heard of sooo many different filtering, blending methods being used from tying a knot in a leg of denim jeans and letting the old stuff filter through, then other methods of mixing it 50/50 with road fuel then filtering through different micron filters down to 1 micron or 0.5 micron, then at the other end of the scale using a proper centrifuge to do it.
Now all I would be concerned about is how much filtering would need to be done, I would have no problem going out now and tipping a gallon of new Castrol GTX in my tank cause I KNOW IT DOES WORK, its just as I say how far to go with the filtering and or blending, obviously when I did it it was only for a very short period but I would be very interested to hear from folks who have been using "Black diesel" as it seems a very good way of saving money plus recycling the old oil, win win if it works fine
PS: there was one other way I heard of filtering but it would take a heck of a long time:
have a bucket of WEO (waste engine oil) raised on a shelf with an empty clean bucket below, then cut a length of rope measured from the bottom of the top bucket of WEO up and over the edge and down into the new clean bucket, looped over, the idea being the rope would absorb the oil over time and sort of syphon down into the clean bucket, while the rope would act as a good filter and would not allow any suspended particles to get into the clean one
BTW: my car is not a PD or common rail and I would be very reluctant to put it in a common rail until I knew it was safe or had tried it on an old scrapper, I also hold no responsibility for any damage if anyone tries this ITS UP TO YOU, I was just telling you of my personal experience and the car was running absolutely fine when I scrapped it a few weeks later, in fact it seemed to run smoother on the old oil
I have been looking into this as an option as I have virtually unlimited access to this stuff as in a breakers yard, and have heard so many different opinions on this subject:
For a start, there has been talk of there being metallic particles in the oil, but surely some of the filtering techniques would surely sort this problem, some people are saying a definate NO NO and others are saying its fine as long as you do this or that, others say they would use in an older diesel but not in a common rail etc etc etc.
I will tell you here and now my very little experience with it, I was using an old car last year that had a few weeks tax and test left on it and the car was due to be scrapped at the end anyway, it was an old R reg Citroen Xantia TD btw, I was also running it on the very least fuel I could get away with as I didnt want to be spending any money I didnt need to before I ran it in, well me and my mrs were driving round Wigan when it coughed to a halt out of fuel, I checked the boot for a jerry can to go and get a gallon of diesel and all I had was a 5 litre Castrol GTX bottle full of used filthy black engine oil I had drained from my Iveco recovery truck, I thought what the hell and poured it straight into the tank, I connected my booster pack up, primed the filter bulb up until I was getting fuel out and spun it over, it fired into life no problem whatsoever.
Now I wouldnt condone doing this on a car you were planning on keeping, remember this was filthy black sludgy old engine oil with a good 12k on it if not more, but it DID run and ran very very well, BUT I dont rekon the fuel filter would last too long running stuff that dirty through it.
Now I have heard of sooo many different filtering, blending methods being used from tying a knot in a leg of denim jeans and letting the old stuff filter through, then other methods of mixing it 50/50 with road fuel then filtering through different micron filters down to 1 micron or 0.5 micron, then at the other end of the scale using a proper centrifuge to do it.
Now all I would be concerned about is how much filtering would need to be done, I would have no problem going out now and tipping a gallon of new Castrol GTX in my tank cause I KNOW IT DOES WORK, its just as I say how far to go with the filtering and or blending, obviously when I did it it was only for a very short period but I would be very interested to hear from folks who have been using "Black diesel" as it seems a very good way of saving money plus recycling the old oil, win win if it works fine
PS: there was one other way I heard of filtering but it would take a heck of a long time:
have a bucket of WEO (waste engine oil) raised on a shelf with an empty clean bucket below, then cut a length of rope measured from the bottom of the top bucket of WEO up and over the edge and down into the new clean bucket, looped over, the idea being the rope would absorb the oil over time and sort of syphon down into the clean bucket, while the rope would act as a good filter and would not allow any suspended particles to get into the clean one
BTW: my car is not a PD or common rail and I would be very reluctant to put it in a common rail until I knew it was safe or had tried it on an old scrapper, I also hold no responsibility for any damage if anyone tries this ITS UP TO YOU, I was just telling you of my personal experience and the car was running absolutely fine when I scrapped it a few weeks later, in fact it seemed to run smoother on the old oil
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