heated to 125 F, mixed the lye/methanol, stirred by pump for 1-2 hours. let sit (still being kept at around 90-100) for 2 days. drained glycerine, got to some soaps, closed valve, ran through filters (2 inline, changed after every 5 batches of 20 gallons) by using my pump, which is how i stirred it before, let sit for another day. drained last few drops of glycerine and what little soap (if any was left), then pumped through filters again, then pumped into fuel tank.

i did this during the winter/spring, so heat was needed to keep the chemicals mixing properly, but with current temps the heat should only be needed to heat up the oil before u add the chemicals, during the mixing, then you can shut off the heaters (your choice, but depends on how quickly you want the fuel to be made. kept at 125 F would make the fuel in around 1-2 days, but would require more filtering and would have less fuel due to soap buildup (the slower reacting particles because they have water in them) the longer it sits, the more fuel and the better it is mixed. BUT MAKE SURE TO FILTER!!! # of times to filter depends on how much water is in your oil, and how pure you want your fuel to be.

ps. alot easier to change out filters on your processor than it is to change them on your truck. make sure that when you are filtering out your oil that you stop periodicly, say every 30-45 minutes, to drain your water seperators on your filters (either buy them new, or go to a junk yard and get the water seperators mounted to the fuel filters (and the filter mounts) from a truck.)

then check your water seperator a little more often on your truck (say every couple of days) until you find out how much water is left over in your tank. you WILL GO THROUGH A FEW FILTERS with the first couple of batches of biodiesel, i replaced about 7 or 8 filters on my truck within the 1st 4 batches, just the tanks/lines being cleaned out. after that, i didnt go through any more filters. my truck was an 89, so it had built up a fare amount of crud in the tanks.