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    Ram 2500 loss of power and fuel efficiency

    I have a 2012 Ram 2500 (5.7L Gas) that has had a dramatic drop in fuel efficiency (from 12 mpg to 8 or 9 mpg) for the last week or so. This has been accompanied by higher RPMs than normal to maintain speed, especially on the highway. I am not the best at routine maintenance and thus initially...
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