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Old 02-17-2013, 10:21 PM
BigHorn09 BigHorn09 is offline
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Join Date: Sep 2012
Location: Muscatine, IA
Age: 31
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Vehicle: 2014 Ram
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Engine: 2013-20?? 345ci (5.7L) Hemi V8 395hp 410lb/ft
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I've got a 2009 Hemi Ram 4x4 with 3.55 gears and 20" rims. I can't seem to get more than 14.5 mpg on the highway. How do I tell if the MDS is actually kicking on? At cruising speeds, it still sounds like all 8 cylinders are firing.
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