93 Octane tune - Does ethenol matter?

[cbblythe]

Hi,

I am debating on which tune to install, 91 or 93. I have a local gas station with 93 octane, but I'm having a hard time finding out if it contains ethenol, and if so what %. I'm in PA.

Does the 93 tune care about anything other than the octane level reported at the pump?

2011 Challenger SRT8 6.4L using Intune DCX

[mikel]

replied to your email....we use 10%E fuels here to develop the tunes