it probably has a lot of water in it. I would probably burn it or like someone said, use it as a weed killer or in a bonfire. 
Be careful with it though
Most of it would evaporate anyway.
E85 is called E85 for a reason- it's supposed to be 85% alky and 15% gas, so find a buddy with a newer vehicle that's marked for flex fuel and give it to him. The water is a concern as is phase separation, but you can buy an additive to prevent that. Watch that marshmallow fire thing, cause alky burns nearly invisibly in the sunlight. Have fun!
I was concerned about both of these matters.
Figured, maybe I could mix it in with some gas for my lawn mower, each time I need it. But really, probably is too much water.
And phase separation. It has been a year or so. It could have PS. But up here in the high mountains it's not humid at all. I"ll have to check for that.
