Thank you showkey!
The Seafoam was just a one time thing because I've had gas with ethanol in Lucille for several years and the accumulated condensation of moisture in the tank, which was mostly half full all the time, was questionable. Also Lucille sat a lot and did not run for a number of years while we were moving from one State to another. I don't believe it hurt her at all.
The ethanol gas is more expensive but I don't care about that. Three plus dollars a gallon is OK for me on a 70+ year old antique truck which brings her back to life and is not a daily driver!! She's a Stovebolt Calendar Girl from 2009! Awesome!