Hello, I am Danny.
With saving you the time of completely draining your gas tank I have something you might want to try first. There is a product called Seafoam you can purchase from your local auto parts stores. It is in a white can with red lettering (gas treatment-picture attached). Just pour into your gas tank. Hopefully you can just let it go through the existing soda/gasoline add just add fresh gas. Hope this helps and feel free to ask any other questions if needed. Thanks for using 2CarPros.
Danny-
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Monday, September 3rd, 2018 AT 2:46 AM