Run used oil - Page 3 - Diesel Forum

byantdt · 08-28-2006, 12:48 AM

OK, bottom line, one of oils jobs is to capture and suspend contaminates, even those finer than the filter will stop. So, why dump it back into the engine via the fuel tank?

Oneof6 · 08-28-2006, 04:17 PM

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Ok, but a micron is 39 millionths of an inch.

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Your math is a little off. There are 25400 microns per inch.

[/ QUOTE ] That's funny. You told him he was wrong and then told him he was right.

Anyway, how can [ QUOTE ]
The fitment between these tow parts (think fitment of piston to cylinder wall) is on the order of 20-30 millionths of an inch.

[/ QUOTE ]- which is about 1/2 to 3/4 of a micron- when the fuel filter is filtering to 2 microns? Engineered failure?

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Devo

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I told him to check his math, that is all. It is up to him to decide it 1/1,000,000 on an inch is the same as 1/25,400 on an inch. I already know. I told him the typical fuel filtration on these engines is 2 microns, it is. The engineers that designed the piston and ring to cylinder wall fitments did not check with me. I have some opinions on it, like it doesn't matter below 2 microns to the injectors, most of the fuel on the power stroke is suspended in a burn consequently minor elements not a problem at or below 2 microns and that there is an oil film on the cylinder walls that has the make up thickness sealed anyway. So I really don't know what you find "funny". I find it funny that you spell the number two "tow" but that is just me. I find it funny that you would think that anyone would have a reason to design anything to an "engineered failure". Lots of things are funny, like I am laughing now. 106

BluePSD · 08-28-2006, 08:14 PM

if you want to run used motor oil, build your self a small oil refinery and burn the diesel-like substance you produce i've done it and its fairly simple and inexpensive. just remember don't use copper piping for any part of it! use stainless nat gas flex line for all piping.

spg · 08-30-2006, 02:45 PM

I don't beleive that properly filtered uncontaminated WMO and or Transmission fluid run in a 10 to 15% blend will hurt anything at all. It should be filterd to at least 2 micron and not be contaminated with any water or antifreeze. It will definitely burn, it comes from the same oil wells as #2 diesel. As for contaminents it can't be any worse than WVO out of a cooking source. The fuel that we pump from the stations every day would probably suprise you if you had it checked also for dirt and water. Not everyone uses just diesel crankcase oil there are many sources of gas motor used oil.

TAILDRAGGERP · 09-12-2006, 08:22 AM

it doesn't make much sense to pour Carbon and metal shavings in a good engine , to save $2.75 a gallon. kenny

Airplaneguy57 · 09-12-2006, 08:49 AM

Fuel prices are dropping. Dump the oil in the recycle drum and save your engine.

chadjones99 · 09-29-2006, 07:47 PM

ok I have been waiting to do this and like others did not want to jump into it and break my truck.
So here is what I have done. I wanted to do a test to see if the truck would run good on oil in the first place
so I was driving to town today and I was down to about 1/8 tank
5-6 gal in tank I am guessing , so stopped at Wal-Mart and bought 2 quarts of oil, I put one in and drove about 10 miles and stopped at another store (wanted to see if it was going to be hard to start) anyway I put another quart in and off I went , the truck start easy and drove fine. I checked my exhaust temp gauge ...no change there
so I have like 50 gal of used oil well at 2.60 gal x 50 = 130$ fuel saving to start . I have it filter down to about 20 micron using a reg oil filter. now I know that is not clean enough. I know the truck runs good on oil mix ..I just need to clean it up .. I ordered a bypass oil filter that use's a toilet paper roll. say's it will clean oil down to 1 micron. so if I mix it at 20% oil to diesel and get close to 1 micron . well I don't think it can hurt. people say it is acidy well you think that the fuel line will hold up to bio fuel/ methanol I don't think this will hurt. it save me from wasting oil... is the way I look at it, plus it will be 50 gal's of almost free fuel. yaya I know if it takes out the injectors than its not free, but I don't think that 1 micron oil is going to hurt.. and I don't plan on running it straight .

AggiePSD · 10-02-2006, 09:32 AM

Let us (me) know what you end up doing and how it works.

chadjones99 · 10-02-2006, 09:53 PM

ya this site ...especially on the BIO forum. you should be trying help
people figure out how to use bio-fuel be it oil , WVO , etc
not scare them from it...problem solving is what its about. I just cant see wasting that much oil..especially when it can save you money.
I will post results so other can benefit from this. I hope to have my filter next week and maybe use it the week after that.
chad

chadjones99 · 10-02-2006, 09:57 PM

if my ford can handle 50 gallons a year of oil...then I will be buying a dodge. I can see being exposed long term to oil that may be a little acidy , being bad for seals and cause it to fail earlier but not a little once in a while.

Halitosis · 10-03-2006, 02:33 PM

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ya this site ...especially on the BIO forum. you should be trying help people figure out how to use bio-fuel be it oil , WVO , etc not scare them from it...problem solving is what its about.

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I wanna burn waffle syrup in my 7.3 PSD. Is everyone here who tells me that I shouldn't attempt it just working against me? Or is it that CONVENTIONAL WISDOM says it's a bad idea.

I brought up the question of "what would it take to filter out WMO to make it sound", and conventional wisdom from the "brains that be" (someday I'll be a member) was that motor oil contains not only sub-1 micron metal nasties that can score your injectors, but also contains additives that are designed to RETARD its combustibility.

I believe the general consensus was that by the time you were able to get the WMO to the point where it may be usable fuel, you wound up with a huge expense to create a small oil refinery/distillery, and nearly as much waste product as the WMO in the first place.... thereby nullifying the project as a whole.

Don't confuse the input with "working against you"... it's just advice telling you that it's probably not a good idea. But hey, it's your name on the pink slip, and your time to pursue.

Halitosis

StorminNorman · 10-03-2006, 02:55 PM

[/ QUOTE ]I wanna burn waffle syrup in my 7.3 PSD.

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If you would blend that with oil from a donut shop and some from a rib place, could you make the exhaust smell like pancakes and sausage?

Yum

Norman

bork · 10-04-2006, 11:00 PM

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[/ QUOTE ]I wanna burn waffle syrup in my 7.3 PSD.

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If you would blend that with oil from a donut shop and some from a rib place, could you make the exhaust smell like pancakes and sausage?

Yum

Norman

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Suns_PSD · 10-06-2006, 03:00 PM

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and conventional wisdom from the "brains that be" (someday I'll be a member) was that motor oil contains not only sub-1 micron metal nasties that can score your injectors, but also contains additives that are designed to RETARD its combustibility.

Halitosis

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Yet others have ran WMO in large quantities for years and upon injector tear down no unusual wear is noted. Hum. Kinda of throws a wrench in the "brains that be" ideas. But them again, the "brains that be" rarely have actually TRIED running WMO.

Maybe it's just a conspiracy so others can keep all the free fuel? lol

shorthair · 10-22-2006, 08:48 AM

ok i'm running 70% wmo 30% dino in my idi & have been for the last 10,000 miles. filtered to 2 microns thru a water seperator. mileage is about the same power is a little better starts a little harded on cool mornings & makes more smoke that smells bad, i dont think it will pass deq but if i run 40 gal of dino she cleans right up. since i have saved about 1200$ so far the savings can pay for a new pump & etc.