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Old 02-02-2012, 05:40 PM
nfsgt0 nfsgt0 is offline
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Join Date: May 2011
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Vehicle: 2011 Dodge Ram Crew Cab Sport
Color: Blue
Engine: 2009-???? 345ci (5.7L) Hemi V8 390hp 407lb/ft
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I have a 2011 Hemi sport with the 3.92 gears and am noticing the same drop in mileage. I was also having problems with my rear axle. I would drive 30 minutes into town and notice a whining (which eventually turned into grinding) sound from my rear axle. I finally got it to the dealership and after the first recall back in February they told me that the truck needed an "additive" to the mixture because it was too think and not lubrication enough. After I had that done, the truck seemed more powerful and got great mileage. A few weeks later it was just about back in the same place but without the grinding sounds (so far). I am not sure what is going on. I am no expert but if I had to guess something with the axle. Also, the "recalls" seem to be a quick fix that is avoiding the big problem. Hope this is helpful.
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