91 octane with Predator?

[GizmoZ]

I just installed the Predator Diablo tune into my 2007 C6. I'm using U7194. I was under the impression I was able to choose my octane rating and install a corresponding tune. The only question it asked me is manual or auto tranny (manual). After reading some on the forum it seems the Diablo tune that comes pre-installed is the 93 octane tune. All I can get at the pump is 91 octane.

My questions are:

I am at 2890 feet above sea level. Right now the temps are in the 40s and the car didn't exhibit any noticeable pinging at WOT. In the summer when temps get above 100, I'm thinking I may get some pinging with the 93 octane tune.

If I do indeed need the more conservative tune, what do I need to do to adjust the canned Diablo tune to run on 91 octane pump gas?

Thanks!

[johan]

The reason we do not have a 91 octane tune is because we did not add any timing in the 06-07 C6 tunes, they did not like it at all. All we do is lean it out and adjust some other things but no timing is added, so you should be safe with 91 octane.

[GizmoZ]

Easy enough, thank you Johan.