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Old 04-01-2013, 07:57 PM
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Desert Rat Desert Rat is offline
Dodge Ram Forum Newcomer
 
Join Date: Aug 2010
Location: Mesa, AZ
Age: 43
Posts: 17
Gender: Male
Vehicle: 2007 Ram 2500 Quad Cab
Trim Level: Big Horn
Color: Blue
Engine: 2005-???? 359ci (5.9L) Cummins ISB 610 24-Valve Diesel I6 325hp 610 lb/ft
Rep Power: 0
Rep:20
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Default Sudden mileage drop with diesel

2007 5.9 4x4 2500. I usually average 15-16MPG with mixed driving. Last tank was just over 11. I can think of some not optimal conditions on this last tank, but nothing to justify a drop like that.

Truck throttle response hasn't seemed to change, no check engine lights, and no black smoke.....Just garbage fuel economy.

ideas?
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