Has Google broken? Will the mechanic's shade tree become the Bodhi of truth here? 
And supposedly i am the one that brings Kaos.
Anywho. additive, full tank (low lead) and if you can, or just simply start it once in a while. Could easily do a month or so without starting.
Shake it, stir it, and or throw some screws in your tank (grandpa's tip) if you do see corrosion forming.
[fun fact] E10 could possibly start to deter after 2 within 3 months. Its not an overnight process.
BUT if its corrosion you're worried about, remove the tank drain it, dry it and use a tank liner.
or. just start it every now and then. ride it down the street when its an option. Then it shouldnt be a big issue. and cover your bike, it helps.