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  1. just came back from roadtrip...efficiency test

    General Challenger Discussion
    I now have 5,400 miles on my srt8 and this trip to southern colorado from northern colorado went beautifully. Boy this car drives nicely! Now, stunningly, my dash computer said I got 26.5 mpg going down w/ a/c on 3/4's of the way driving 70-90mph, but coming back it showed 29mpg under same...
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