Thanks for asking, and you did hear right that there is alcohol in most gasoline today. The alcohol used is ethanol, also called grain alcohol or ethyl alcohol, and it is the same alcohol as is in wine, beer and whiskey. The ethanol is usually made from corn and then “denatured” so that it is not drinkable and then added to gasoline at the local fuel depot/distributor. Gasoline today contains up to 10 percent ethanol. There is a website (www.pure-gas.org) that lists stations that carry gasoline that does not contain ethanol. Ethanol-free gasoline also costs more.
Regarding your third question, I suggest that two things be done to help protect your equipment: