Okay, this is true and definitely useful as one more option in a so called STHF scenario but ethanol still provides more complications for use and conversion in

Okay, this is true and definitely useful as one more option in a so called STHF scenario but ethanol still provides more complications for use and conversion in modern gas engines (especially if you include newer fuel injected motors in cars).Furthermore and much more importantly, biodiesel (slightly different from the SVO of my original comment but close enough)produces about 90%+ more energy than is needed for its production, while ethanol only manages about 25% or so based on data I've seen. That's a major bonus for biosiesel and SVO generators or vehicle engines because in a real catastrophe situation, you'd want the most fuel energy for the least production inputs. Also, modified diesel engines that run biodiesel can also run straight vegetable oil and even animal fats, making them more versatile and easier to maintain than an ethanol motor.