my experience with used soy, and would also apply to new probably. If you put a small amount of soy in a shallow dish and let the oil evaporate, which will take a few days, the remainder is a thick sticky goo that is most likely the triglicirides that will koke an engine. I am building a processer and have collected to date about 70 gal of oil. There is a lot of oil out there but also a big variety in quality. Burger joints seem to use an oil that comes in a block, looks like a big lock of lard. My source uses soy that comes in a 5 gal plastic container. If this process works out I will try and expand my quest for more oil. My biggest problem is time, filtering,and cleaning up my spills. got to build a better filter. I kinda want to throw up when I see the degenerates that supply our oil so sucking up to a local cooking joint actually makes me smile. Ride your *** osoma and live with sand fleas.