I did log on my nGauge and see exactly what happens. I did this with stock tune, and all MPT tunes, on the same road. Did you? No? Talking out of your ass?
Read my post you ********. I ran 91 from the start, then as a test, ran 87 to see the difference. This wasn’t able saving money, it was about knowing what the stock Bosch ecu does and how it responds to knocks.
You are wrong and did something wrong then. Put the truck on a ****** dyno and you'll see what I mean. The truck will definitely put more power out after a couple tanks of premium gas ya cheap bastard. There's even a Dyno sheet someone posted of doing just that.
Do what you want and justify being a cheap ass if you can't feel the power difference anyway. You should invest that $100 in gas savings a year .. what will you do with all that saved cash ?!?!