By all means take the advice of a truck driver for choosing how to care for your bike.
I have used Top Tier gasoline in my Aprilia Tuono as much as possible. Sometimes ya gotta use what is available. My intake valves are free of deposits at over 90K miles and has yet to need a valve adjustment. The bike also sat for almost 6 months last year with a full tank of 10% ethanol fuel and yet fired right up when needed.
As far as additives for fuel Startron works well. It's not a chemical solution but organic. There are enzymes in it which attach themselves to the alcohol and allow emulsification. Which prohibits it's separation from the fuel and makes it possible to be burned off. While it's not designed for storage it will allow a couple months sitting w/o problems come springtime. BTW it (Startron) comes highly recommended by a chemist who works for BG Products who is a customer.