I also just checked. My low fuel light always comes on between 365km (227 miles) and 410km (255 miles) norm 390km. Getting >20mpg. In China the lowest grade of fuel I can buy is 92 octane. High grade is 95. Maybe this has influence??? What I say is true
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Actually, the higher octane may have something to do with your experience. Also, as mentioned, if you measured stock MPG with only the Jeep onboard computer before correcting the speedo with the tuner it would've been incorrect.
I don't know if you have auto or manual trans, but that would also affect your results as well.
I do agree with your statement about driving over 70MPH. Once you start running faster than that the mileage drops like a brick.
Since you have to run 92+ octane anyway, you should try the 92 performance tune and see how it affects your Jeep. It may actually run better for you.
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