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Custom Dodge Ram Performance Mods - Engine - 3.6 Liter Pentastar V6 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 3.6-liter V6 engine - 305 horsepower, 265 lb-ft of torque.


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  #1  
Old 01-26-2013, 11:35 PM
rpinsc58 rpinsc58 is offline
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Default What is ECO mode?????

ive determined that eco mode has something to do with cylinder deactivation on the V8's. but i do alot of interstate driving and my eco light is almost always on, so i thought maybe it had something to do with the Active Grill Shutters. Can anyone clear this up for me?
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Old 01-26-2013, 11:38 PM
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This is when your engine shuts down 4 of your 8 cylinder and saves gas usage.
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Old 01-27-2013, 11:18 AM
rpinsc58 rpinsc58 is offline
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thats what i thought, but i have the V6. i didnt think that was a capability of the pentastar
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Old 01-27-2013, 11:28 AM
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Here's a link talking about the Pentastar Engines. Looks like the eco mode will take it to 3 cylinders when less power is needed. I wish I would have had that engine in my Wranger JK. Probably would have been more power than the 3.8.

http://www.pentastars.com/engines/tech.php
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Old 01-31-2013, 06:25 PM
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I dont think it shuts down to 3 cylinders. I think it is when you are using less than 15% throttle maybe 20%. Our hemis do the same thing.
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Old 01-31-2013, 06:53 PM
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Quote:
Originally Posted by Unfairkickazz93 View Post
I dont think it shuts down to 3 cylinders. I think it is when you are using less than 15% throttle maybe 20%. Our hemis do the same thing.
Here's a quote from the link I posted:

Chrysler wrote that: “The new Phoenix of V-6 engines will feature cylinder deactivation (MDS)...the engine will operate efficiently on three cylinders when less power is needed, and in V-6 mode when more power is needed. This optimizes fuel economy when V-6 power is not required – without sacrificing vehicle performance or capability.
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Old 01-31-2013, 06:58 PM
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I get this light on my 2013 4.7 I've wondered what it was for...
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Old 01-31-2013, 08:03 PM
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Quote:
Originally Posted by TVL View Post
Here's a quote from the link I posted:

Chrysler wrote that: “The new Phoenix of V-6 engines will feature cylinder deactivation (MDS)...the engine will operate efficiently on three cylinders when less power is needed, and in V-6 mode when more power is needed. This optimizes fuel economy when V-6 power is not required – without sacrificing vehicle performance or capability.
Ah, interesting. I scanned that article for that but couldnt find it. But anyways I do know it also goes on when the throttle is less than either 15 or 20 percent.
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Old 02-04-2013, 03:21 AM
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I have the same thing in my 2011 Durango with the V6. and was wodnering the same thing. I cant really find any more info about cylinder deactivation other than the quote on the pentastar site. I do know though on my 2009 ram with the Hemi, when it cuts to 4 cylinders it says fuel saver. I figured the ECO light was just a way to let you know that you were driving efficiently and saving fuel. Kind of a way to get you to drive more GREEN. not really a system activation or anything.
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Old 02-10-2013, 09:46 AM
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Quote:
Originally Posted by TVL View Post
Here's a link talking about the Pentastar Engines. Looks like the eco mode will take it to 3 cylinders when less power is needed. I wish I would have had that engine in my Wranger JK. Probably would have been more power than the 3.8.

http://www.pentastars.com/engines/tech.php
I wondered how they could say that the Pentastar could push 36mpg in the RAM, my wife's Grand Caravan has that engine but no MDS just an ECO mode that makes it shift faster and rarely do we get close to 36mpg.
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