Personally, I use good old fashioned Stabil - it’s good for ethanol or non-ethanol gasoline & keeps fuel fresh for up to 2 years. I only let fuel sit for 1 year though. I have an emergency gas generator in case of power outages & keep gas on hand & have never had an issue with Stabil. After a year, I dump the gas cans into my vehicle(s) & go get fresh gas for the gas cans.
As far as your oil change, I would change it when it comes OUT of storage.