Hey guys I also have a flex fuell 2010 1500. My only experience with E-85 is with my 2003 EVO. E-85 loves to be run in forced induction cars with hi comp. ratios and a ton of timing! On 91oct I made 320awhp, on E-85 I made 400awhp
All I changed was fuel...but that fuel let me run 30lbs of boost and a ton of timing cause Ethanol does not knock like 91oct. Oh another thing here in California we dont get winter blends of E-85 cause we dont have to worry about cold starts like you cold weather states. Cant wait to run it in my truck after I fab up a turbo kit.