Pick up a can of the stuff in the link below.I ended up going to another dealership to see how good the service is. They again pushed a $350 service that included an ethanol flush because apparently Atlanta's fuel supply has a high concentration....did not take the bait on that one. I got the oil changed and they said everything looked good. I will be getting the brake fluid done next year since it will be at 3 years at that point.
https://www.amazon.com/BG-44K-Fuel-System-Cleaner/dp/B00DDVU6EI