I have found that ethanol gas, even with seafoam creates problems in my truck on long storage. 3 years in row I had to take the carburetors apart to clean the white powder in fuel bowls from the ethanol when it evaporates. You couldn't drive the truck it ran so bad. I would use ethanol free all year but they charge a dollar more a gallon around here. With social distancing I have not needed gas yet, will probably fill tank on the Riviera today.