FWIW, I've got two 55 gallon drums of red fuel that I rescued from a local hospital's supply for their genset unit. The fuel had become contaminated with water and they didn't know what to do with it, contacted the local hazardous waste facility and the Haz Facility called me. I rented a trailer and 'took it off their hands' ...I figure I'll set up a 12VDC pump and run it through a Goldenrod filter into a clean holding tank then polish it a few hours with a new filter.
Hernietta the 2040 only burns about a gallon/hr even when shredding so I figure after cleaning that fuel, I wont have to buy farm fuel for a couple of years!!!