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Old 02-01-2011, 03:38 PM
rdsabin rdsabin is offline
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Join Date: Jan 2010
Location: Southern MN
Age: 61
Posts: 663
Gender: Male
Vehicle: 2012 Sport Reg Cab 4x4
Trim Level: Sport Reg Cab
Color: Mineral Gray Metallic
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 5
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I did the other day going to the VAMC in Mpls, MN. It is about 196 mile round trip and going up I shut MDS off using the +/- 5th gear setting. According to the EVIC I averaged 16.3 mpg and it was 8 degrees out and I ran 70 all the way. On the return trip I reset the gas mileage and drove with MDS on and received a 14.8 mpg, the temperature was 12 degrees when I drove home. All I can say is the truck feels more responsive and doesn't get any drone in the exhaust with MDS shut off. By the way this is the best mileage I have gotten all winter by shutting off the MDS as I alway ran it before. I also notice a 250 rpm difference between MDS and no MDS at 70 mph. If I were to run at 55 mph then the mpg's go way up but that is not my driving style.
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2012 DodgeRam 1500 4x4, 20% Tint, Running Boards, Class IV Hitch, 14" Win Muffler, Catch-Can, Tow-Hooks, LED Tailgate Bar
2008 Dodge Supe Bee, Catch Can, Backup Camera, 20% Tint all windows, CAI, AFE Filter
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