Hello, I'm Danny.
Well, the best course of action would be to drain the tank. If you first want to try adding fresh gas first that is understandable. There is a fuel additive called SeaFoam you can buy at auto parts stores that I've used in the past that got a car started after sitting for 5 years with old gas. I've attached a picture below of what it looks like. Hope this helps and thanks for using 2CarPros.
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Monday, October 19th, 2020 AT 12:03 AM