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you are right, surfgirl, the byproducts are probably not identical, because I use no lye or alchohol chatalyst. One more reason that I know that I underestimated the lye. The biodeisel processors already have added some lye at the beginning of the process. This is probably going to be a...

I am no chemist myself, but I am told by people who process veggie oil for their cars that this is glycerine with unsaponified fats. What happens is that during the process of heating the oil for filtration that the heavier glycerine falls to the bottom of the processing units and forms almost...

PS Carebear, the stuff sure burns like glycerine, you can make awesome firelogs out of it by mixing it with sawdust and compressing it in a log shaped mold. It burns for hours and hours.... Just a wee little bit of useless information for ya!! :)

Thanks for your prompt responses. Just to clarify, we do not process biodiesel, their car runs on strait veggie oil. No ethanol or methanol catylists are used in the process. So no worries about toxicity. They simply heat and filter their oil to remove any impurities. And you are right, it...

Hi Everyone! I am very glad to find this forum. Well I have a unique situation. My brother and sister in law run their Ford Extursion on veggie oil. Not biodiesel, strait veggie oil. Their suppliers are several local restaurants that allow them to buy their used fry oil at a very low...