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hey guys quick question, i have always gotten pretty good gas milage average 18-22 mpg with no trailer, even if im being heavy on the pedal. latly my milage has gone down for the past couple weeks i have been seeing right around 13-14 no better than 15 no matter how easy i drive. anyone out there now whats going on, my truck runs fine no loss of power or anything like that, could there be a TSB im hoping i dont have to see the dealer...
 
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