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Waste Motor Oil as fuel?

Pillow

Pillow

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Messages
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Location
Warrenton, VA
Good or bad idea for our 6.5s?

Also what ratio to run? How much is too much in a mixed tank? Maybe it does not matter?

Sorry for the knob question, but I am sick of recycling all that potential fuel now that diesel prices are skyrocketing!

Thanks,
 
I'm going to go with "bad idea."

FWIW.

Heavy metals, superdark color (optical sensor), horrible emissions. It's not worth it in a 6.5. Perhaps get a "waste oil furnace." Designed to burn it clean and mean!
 
It can work fine when using a DB2 Pump

Filtered well and mixed with a little kerosene or Diesel to thin it out and it will work well.

A local fellow uses all his drain oil from his repair shop to run his shop/daily drivers.

Running this stuff in a DS pump is not gonna work well at all.

Motor oil mixed with vegie oil, kerosene, gasoline or tranny fluid, GP8 or any combination of this mess will all work.

Just needs to be clean.


MGW
 
That's a good point, Missy. I keep forgetting about that damned old optic sensor. I guess it needs to "see" so it can do its job. :D
 
Veg_Out said:
I'm going to go with "bad idea."

FWIW.

Heavy metals, superdark color (optical sensor), horrible emissions. It's not worth it in a 6.5. Perhaps get a "waste oil furnace." Designed to burn it clean and mean!
Click to expand...


I agree. I mixed approx. 1/2 cup of waste oil into a quart of chain saw bar oil and it turned it jet black and actually stained the container for a while. The optic sensor doesn't like dark fuel.
 
Call my old fashioned or whatever, but I don't understand why people will risk the longevity of their ride/parts (I.P) to save a few bucks.

I have an uncle that plays with veg oil and everything else including the kitchen sink to save a few bucks. No tellin what he's all got in that fuel tank. He's the guy you pass on the highway doing 45 mph because his recent "mix" was too thick LOL.
 
i side with the pessimists, waaaaay too much time, love, energy and money in my ride to risk longevity. I will do Biodiesel all day long, hell i would even do WVO if i found some in the summer, but USED motor oil - no way.
by the time i filter that 74 times to be sure, the mess, energy and time is definitely not worth the 3 cent savings....
 
My understanding is that it tells the pcm where its at for timing purposes. Don't really understand it all that well my self but I would assume that there is a wheel of some sort that it reads via cogs/holes. I would really like to see some pics of one apart with labels on the parts. A pic is worth a thousand words ya know.
 
what if you have clean (still transparent brown) used motor oil? the 8.1 spits it out clean as new, synthetic even... might lubricate things a little...
 
The optic sensor has to see through the fuel to see the camshaft timing reference.

I would think that a 34 gallon fuel tank could handle maybe 2 gallons of very finely filtered UMO, less than 1:16 ratio. So is it worth $6 a tank, which is maybe $6 a week, $300 a year? Maybe more in the future? Plus the $2.50 per tank you were going to spend on a quart of non-detergent SAE30 or TCW3 2-stroke?
 
Well Id say for sure it wont work if it makes your fuel opaque. So any high concentration of black oil would be an issue. I have read of people that did have several gallons of UMO and it wouldnt get out of limp mode becuase it wasnt transparent. But it will work as long as its transparent enough, so in lower concentrations.
 
One real quick question...not trying to hijack the thread....How much 2 stroke oil do you guys recomend per tank or per gallon?? Ive just been using one of the 1gal mixers every time i fill up.
 
This comes up every now and again, waste/used engine oil is not a good idea with optic or without, operative word is waste yes you can filter out solids but you can not change the chemical properties that have become part of the oil over time thru the combustion process, nor can you correct the Ph of the oil, nor remove condensation or water/coolant that has become entrained in the oil, thru fine filtration.

Yes you can get by with it, and yes old school smokers mostly 2 stroke Diesels got away with it, and the ole farm tractor or some OTR drivers swore by it back in good ole days of MFI, but longevity wise it's not a good idea, and yes this is all opinion, but opinion of somebody that used to run oil analysis tests daily.

Clean oil for lubricity yes in a low psi fuel system, never in a common rail system, "cleaned but dirty" oil as a fuel additive in my truck ???; never unless a end of days scenario and that is the only "fuel" around to get me from point A to B.

IMO generic 2 cycle oil. or SAE 30 non detergent is cheap & available blend that with your fuel if you feel the need and take your used oil/trans fluid to the recycler, yes it will work if diluted to be "seen thru" by the optic, but with the cost of injectors and IPs that alone to me says its a "bad idea", your truck put whatever you want in it, since you asked for opinons mine is no I would not recommend it.
 
Aside of UMO being good or bad,
how can the OS see trough anything other than with magnetic impulses.
Its as dark as midnight in the IP.

explain please.
 
There is an encoder ring inside with slots that coincide with the firing order through the injectors. From what I understand, the optic sensor shoots a beam of light through this encoder ring. Whenever the beam of light reaches the sensor on the other side of the slots, it triggers the PMD/FSD to fire the solenoid which starts the injection process. The best analogy I can give you is like the Mallory Unilite distributors. The rotor has slots in it that allow light to complete the circuit and fire the coil.
 
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