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MDS Multi Displacement System Discussion


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  #61  
Old 02-07-2013, 01:02 AM
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RyanJM RyanJM is offline
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I turned mine off cause it came on and off constantly and the sound with the magnaflow was annoying. Plus now I can tow my small trailer without using the tow mode and get better mpg since the tow mode ate gas up on the highway. Now I just slap it on and go to the next job. Plus I didn't notice any real mpg loss off a full tank. I will gladly give a a mpg or so for a truck that drives the way I want. I bought hemi cc with ram boxes cause I wanted a big comfortable truck I could pack things in and people not cause I wanted good gas mileage. Although I get almost the same mpg out of my Ram with 110k as my bosses f150 fx2 that has stock wheels and tires where I have aftermarket 20's with the 285/60 duratracs which are much heavier. Now waiting for a 13 I like and then take this intune and shut the mds off in it soon as I can
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  #62  
Old 02-07-2013, 07:28 PM
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have a 2012 and when MDS or ECO mode kicks in it is really noticeable from 35-55mph Dealer can not do anything about it because chrysler does not see it as a warranty issue
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  #63  
Old 04-13-2013, 09:35 PM
Disturbed69 Disturbed69 is offline
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I've been turning my off with the -+ button and have gained a constant 1.5 gain compared to leaving it on. I have 3.92s with flowmaster 40 and 295/70/18's. No programmer yet.
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  #64  
Old 05-07-2013, 08:03 PM
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I don't have an issue with the MDS but I find if you set your pace and keep it the same rpm for as along as you can you get better gas milage. I feel I can achieve better gpm without the mds. I drive gentle and this mds kicks on and off more often then just me doing my thing and letting me get the best gas mileage. I think its more for the lead footed people. Nothing against them but I feel better without it. My two sense.
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  #65  
Old 05-28-2013, 08:29 PM
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It might be just me, but i think the MDS worked alot better on my 06 QC, i couldnt tell, besides sound, that it was in MDS, and it wouldnt try to stay in it all the time. And it got better MPG, like the OP said, 21 on the hwy is what i got at 70mph. My '12 RCSB barely gets 20 SOMETIMES. Mixed is 15-16mpg and the 06 stayed around 17mpg.
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