Motor/ exhaust sound
Veteran
Joined: Mar 2010
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The exhaust 'frequency" drops to half of what it is when all 8 cylinders are operational. Some notice it more than others. My wife never notices it when we are driving, but I do.
Probably more noticable with an aftermarket muffler.
Probably more noticable with an aftermarket muffler.
Last edited by 706jim; Dec 10, 2012 at 10:18 PM.
Moderate User
Joined: Oct 2008
Posts: 17,003
Likes: 21
From: Albany, NY
They don't get all ricey sounding. The size of the exhaust and bore size of the cylinders prevents that. Plus the muffler you choose prevents that as well.
It gets fluttery sounding. It used to pop my ears when the windows would be up and it kicked in. It was weird. I disabled MDS first chance I could with a tuner.
It gets fluttery sounding. It used to pop my ears when the windows would be up and it kicked in. It was weird. I disabled MDS first chance I could with a tuner.
Record Breaker
Joined: Aug 2009
Posts: 1,264
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From: Ila Georgia
You get use to it. I have a loud exhaust. I hear MDS cutting in and out. No big deal. Whenn its in MDS I just think of all the fuel its not using. No way would I turn it off. The longer its in 4 cyl mode the more the fuel mileage clicks up. Bet mines in 4cyl mode 80% of the time at minimum. I don't live in high traffic areas but I'm showing 18.5 mpg UP almost constantly. It won't do that with MDS turned off.
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Banned
Joined: Jun 2011
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When in MDS 4cyl mode, they ALL sound like rice, just depends on who you ask.
I`ve always shut my MDS off in the city, turn it back on only on the highway.
The louder the exhaust, the more it sounds like rice pudding puking from a POS honda.
Another way to keep the MDS mode off, just put 10w30 motor oil in the engine.
But, doing this, (no MDS, heavier oil) WILL drastically effect your MPG`s, your choice.
I`ve always shut my MDS off in the city, turn it back on only on the highway.
The louder the exhaust, the more it sounds like rice pudding puking from a POS honda.
Another way to keep the MDS mode off, just put 10w30 motor oil in the engine.
But, doing this, (no MDS, heavier oil) WILL drastically effect your MPG`s, your choice.
Record Breaker
Joined: Aug 2009
Posts: 1,264
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From: Ila Georgia
I've read numerous post where 10w30 dosen't cancel MDS. It just makes not as responsive. If you don't want MDS then buy a performance download and void your warranty or buy a Ford. The RAM has turned into a high selling very popular truck. Obviously only a few with loud exhaust is bothered by the sound. I'm not one that it bothers.