RE: what to do with old fuel
Use it or give it to me! Check out Joe Wagner's article in the Jan. 2004 Model Aviation magazine. He set out to prove or disprove the myth of water contamination in glow fuel. He actually added 20% water to his fuel then ran it. Guess what...........other than being a little hard to start the engine ran great (actually had an increase in RPM). Joe had already researched and disproven the myth that water in fuel causes rust in engines.
Glow fuel is too expensive to be throwing it out!