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    Custom tune guidance...!?

    I just estimated fuel in tank. I was sitting on half a tank so I estimated. 91 octane x 15 gallons= 1,365 110 octane x 4 gallons= 440 So 1,805 divided by 19 gallons is 95 octane
  2. X

    Custom tune guidance...!?

    I also live in Utah where 93 octane is nowhere to be found. I received my Ngauge with MPT tunes last week and so far they seem great. I went with the 91 PR-X, 93 PR-X, and 91 Perf-Tow. I added some unleaded race fuel to make a little over half a tank of 93+ and there is a HUGE difference between...
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