pfft, forget ethanol - propane is where it's at!
Clean and cheap. Mainly cheap :)

Everyone makes fun of me, but I run Premium in everything I own. Shell preferably

Or if I am about to hit the trail I will fill up wherever I can. Probably a waste of money, I am going to be commuting a crap ton starting in January so maybe that will change

youd be surprised what really can handle it and what can't. i estimate i've ran at least 100 gallons through the jeep. mixed with gasoline of course. you really only have to worry about factory non-efi vehicles. and the occasional early efi fuel sock dissolving.