So my 2018 Silverado 3500HD has the 6.0L gas engine under the hood. It's Flex Fuel compatible. The truck currently has 43k miles on it. Usually ever 20k miles or so, I run 3-4 bottles of Gumout Regane High Mileage through the tank to give me a bit of cleaning. Do you think running a tank or two of E85 through it would provide a decent amount of cleaning to the fuel system, including the injectors?