Biodiesel

Started making meme diesel to use as a non-toxic alternative for WD-40 and to use as a 2-stroke oil for ethanol blends. Messed up the first batch, as it became a soapy mix, but it should work well as a soluble cutting oil for machining. Current batch only produced a thin layer of ethyl BD from bad-tasting olive oil. Hopefully, it was just a lack of KOH, and not because the oil was rancid.

Why would you use biodiesel as a lubricant Instead of just the plant oil itself? Do you even know what you're doing? https://link.springer.com/article/10.1007/s10668-022-02669-w Biodiesel is not not toxic. Where did you get that idea? It's just less toxic than normal diesel. https://www.tandfonline.com/doi/pdf/10.1080/10473289.2007.10465333 >ethanol blends Ethanol is just to help reduce gelling in cold weather when it comes to biodiesel as a fuel source but using it as a 2 stroke oil I have no idea. > it became a soapy mix Do you mean it wont settle? You filter it out if it doesn't settle if I recall correctly from what ive read in the past. > not because the oil was rancid You can use rancid oil but that requires esterification using sulfuric acid before the transesterification but this is obviously not recommended for an amateur from how dangerous it is and difficult to remove the sulfuric acid to reuse. Instead I think you can just filter the free fatty acids out if you think it is an issue but I question of removing free fatty acids is even that necessary. https://iopscience.iop.org/article/10.1088/1755-1315/575/1/012226/pdf

>>11467 double you dee fourty is a solvent with lubricant mixed in. I assume he wants ethanol as a solvent.

>>11468 I may or may have read OPs post as not intended thinking they meant two separate uses due to the "and". Now I'm more confused. Though I suppose that might be the case. But problem with adding ethanol is you have to make it anhydrous first using molecular sieves otherwise water is being added. Ethanol also has issue if increasing rates of cracking of steel if I recall correctly. Though I still dont understand why OP is using biodiesel as a motor oil mixture instead of just using a highly refined plant oil like canola oil where it saves so much time, money and effort if the goal is to have something relatively non toxic. I am unsure how it would perform though. Maybe OP used a wrong word somewhere?

>>11467 >Why would you use biodiesel as a lubricant I don't drive often, so improving the fuel's lubricity should help preserve the engine on a cold start, and maintain the fuel pump. >Instead of just the plant oil itself? Though ethanol is a degreaser, bulk vegetable oil and ethanol are not inherently miscible. >https://www.tandfonline.com/doi/pdf/10.1080/10473289.2007.10465333 I wonder if the study distinguishes between ethyl and methyl. I read in PDF-related: >It's an excellent lubricant, very slippery stuff indeed. It's better than household lubricating oils, and [(presumably) ethyl BD is] non-obnoxious and non-toxic -- it doesn't matter much if the kids swallow some by mistake. Great for gardeners, especially organic gardeners, nothing better for lubricating your tools and keeping them clean and rust-free, and non-toxic >>11468 Biodiesel has good cleaning action, so a solvent isn't necessary. The viscosity should be close to WD-40 for all intents and purposes. >>11469 >Ethanol also has issue if increasing rates of cracking of steel if I recall correctly. Are you thinking of hydrogen?