I use straight Benzine in my bike in Thailand.I've been stuck in Oz for a year and a half. I have someone starting my bike there [Vulcan 650.] the benzine has lasted, with a two litre top up, and still starts ok.I doubt E10 would.I have a battery tender too.In Australia ,I run my two Triumphs on 95 straight petrol.I have tried ethanol twice. Once in Thailand on a 600 Honda I had [it ran like <deleted> until I got filled with benzine again] and once in Oz in my car which is ethanol compatible.It used more petrol and had less power,so now I run straight 91 in that.I think ethanol is the biggest con job around.The car in Thailand gets 95 ethanol but it's started and run nearly daily.