05 Dodge 2500 5.9 diesel, 4x4 , 35in. MTz's cool air intake, superchips flashpaque tuner, 373. rear end. 19-21mpg highway 55mph to 65mph. 16-18mpg 70mph-85mph. 13-15mpg city, and 14mpg with any 22-24ft. bayboat in tow. All real world calculations, not the lying computer in the roof, that would be more like 23-28mpg. yeah rite!
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