Diablosport settings, MPG and octane used

[Kevin J. Lamey]

I bought my Diablosport I2 for Christmas and have been trying the different settings and was wondering if anyone has had the same experience. I had originally tuned it with the 87 octane tune with firm shifts, TM on, speed limiter off, 15% throttle boost and my MPG was holding pretty close to before (around 17-17.5 combined/mostly city) just with much better performance over stock. I was also running 100% 87 octane, not the fuel with at least 10% ethanol.

 

I have since switched to the 93 octane tune with the same settings as before and starting running the fuel with the 10% ethanol and my mileage has dropped to around 15-15.5 and I was wondering if anyone else has experienced the same result.

 

I'm considering switching back to the 87 octane tune and going back to running the 100% 87 fuel, of course it costs more for the 100% but its minimal for a tank compared to what 93 octane costs, the 2 more MPG's I think are worth it in the long run.