Hi all. Recently purchased my first flex fuel vehicle, a 2014 Silverado 5.3 and purchased a Diablo Predator 2 for it. I'm wanting to try E85 in it and I'm curious if anyone has done so with the mentioned programmer and what your results were. Sent from my SM-G955U using Tapatalk FWIW the tuner should be here Tuesday. Have not had a chance to play with it yet.