I am the manager of a county airport in the South. Which leads me to a piece of information that I want to pass on to you.
Each day we are required by our brand Quality Control people to draw a sample of fuel from each of our tanks and refuelers. The purpose is to check for contaminates. Once that is done that fuel is poured into a waste drum that has to be disposed of later. We have both 100 low lead for prop planes and Jet-A. Jet-A is a high quality kerosene that works well in diesel engines and in kerosene lamps and heaters. Most larger airports have recovery tanks on their fuel systems that allow them to save this fuel, but some of the smaller airports simply have to call an oil recycler and have it hauled away. For those who are good scrounges and are willing to approach people on such matters this might be a source of fuel for off road use. I would advise the precaution of running this fuel through a filter prior to adding it to a tank since some times an old barrel is used for holding this fuel till pick up. I would request that the "no attribution rule" be applied here.
As for ethanol: I have a book in my library titled Making it on the Farm. This little book covers in great detail how to build a still and make your own fuel. I got mine several years ago from Buffalo Creek Press in Cleburne, Texas. Thanks again and keep up the good work. Long Life, – Name Withheld By Request