Worked the shit out of the superduty today(10 inches slushy snow and mountain roads). It averaged 50L/100kms today, at one point it read 99L/100km and didn`t move for a good two Klicks.
Well drove to town, and filled it up. last 177 miles came to a whopping 12 mpg's. and about 125 of those were with the tune, so that kinda sent it down the tubes, so we'll see, I'm now also running 89 in the last 2 tanks
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