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Old 02-17-2013, 09:21 PM
BigHorn09 BigHorn09 is offline
Dodge Ram Forum Newcomer
Join Date: Sep 2012
Location: New Boston, IL
Age: 30
Posts: 3
Gender: Male
Vehicle: 2009 Dodge Ram
Trim Level: SLT Big Horn
Color: deep water blue pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
BigHorn09 is on a distinguished road

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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