Back when the COVID isolation started in March, I put fuel stabilizer in our second car and filled up the tank (and hooked up a battery tender). I've driven it

Back when the COVID isolation started in March, I put fuel stabilizer in our second car and filled up the tank (and hooked up a battery tender). I've driven it a few times, but the gas gauge still says "full" on that same tank of fuel. Even with the stabilizer I'm thinking that I need to take it out for a long drive to use up the fuel. At the rate things are going, I'm not sure I'll need the car for commuting until next summer.