Soy BioDiesel
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#4
The methanol used to make bio-diesel has a solvent effect on some plastic and rubber parts and over time will break them down. Not all rubber/plastic parts are affected. It depends what it's made of, can't remember the name of the materials. Newer engines are supposed to have more of the non-affected rubber/plastic material in them, but I've not read anywhere what years, if any of the Power Strokes use the "safe" material.
#5
I have been making my own now for about 2 months all in small batches. I have not put any in my 2004 PSD becaus of unreliable information as to the side effects. I have read as much as I can off the internet including the University of Missouri and Idaho projects including several others. I have made it using several types of oil that is waste. I even made a batch from bacon grease. Right now I'am using used soy oil that was in the fryers for 6 weeks...it really bad but my end products are all crystal clear and aside from smell and viscosity look just like DF #2 in appearence. Ran about ten gallons so far in tractor and pressure washer...no problems. From one report they suggest not using it straight in any direct inject or commonrail systems because of excessive carbon deposits on the injectors. IDI diesel are perfect for 100% Biodiesel; ie. 1994 or older Fords. Not sure on the dodge. They recommend 1985 or older Mercedes as the best all round. Anyways there is tone of info and recipes...im trying a new one now using a first stage with SO4...14 molar or 95% so we'll see how it turns out. The methanol is not the culprit in destroying rubber fuel lines, its the oil itself. Most all vehicles '96 or newer use Viton hoses which are not affected so therefore you would be wise to replace any rubber fuel lines with Viton.
#7
Recipe
I am using severl incl. the one from Utah Biodiesel and Journey to Forever website...look up biodiesel there's more than you can read in a week...anyways my above post I wrote while really tired...its deer season here in California, but I tried a new recipe using Sulfuric Acid (not SO4) I meant H2SO4, but it didn't turn out to great...I'll have to review it to see what I did wrong. I'm currently doing one right now. The used vegable oil I use is soy oil from a restaurant locally.
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78fordman
Bio-diesel, Propane & Alternative Diesel Engine Fuels
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02-29-2004 09:55 PM