If it hasn’t been said already , 3 months is no problem if it had a clean tank to start with .Some tanks go south over a year sitting , pop the gas cap on some and yoll find rust forming in the neck , a concern over time . You can also peak down into the tank from above by pulling your sending unit , it’s under that tray on the rear deck behind the back seat , you’ll need a philips screw driver. Then a special larger socket to loosen the sender .