DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Help Zone - Dodge Ram Problems, Complaints, & Solutions - Maintenance & Re > Dodge Ram Knowledge Base


Notices

Dodge Ram Knowledge Base Here you can find owner submitted how-to's for performing various mods to your Dodge Ram!


Latest Vendor News
AutoAnything
Addictive Desert Designs!
United Radio
Bayou Goat Mounts

Reply
 
Thread Tools
  #21  
Old 06-29-2010, 08:40 PM
moparmike07's Avatar
moparmike07 moparmike07 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Mar 2010
Location: NY
Age: 25
Posts: 2,493
Gender: Male
Vehicle: 07 dodge ram 1500
Trim Level: st
Color: silver
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:68
moparmike07 will become famous soon enough
Default

ust a few simple tips can help owners of Chrysler Group engines with Multi-Displacement System (MDS) like the Chrysler 300C, Ram 1500 and Jeep Grand Cherokee get the most fuel mileage possible from their 5.7L HEMI V8 engine. And at this point in the never-ending game of rising fuel prices, we'll take any advice we can get. Read on for a few simple suggestions.

MDS-equipped vehicle owners need not drive in a certain way to realize a fuel economy improvement with MDS, but these driving habits can help maximize their fuel savings:

# Keeping speeds to 65 mph or below - MDS uses four cylinder mode most at these speeds.
# Use cruise control - this helps maintain a steady speed, generally allowing the HEMI to run on four cylinders for longer.
# Accelerate more gradually - the HEMI will provide V8 power whenever it is requested by the driver.
# Use a steady throttle whenever possible - this maximizes four
cylinder mode.

The Chrysler Group MDS is standard equipment with the 5.7L HEMI on seven vehicles: the Chrysler 300C, Dodge Charger R/T, Durango, Magnum R/T, Ram 1500 and Jeep Grand Cherokee and Commander.

With the addition of MDS to HEMI-equipped Dodge Durango and Ram, MDS-equipped vehicles through the end of the 2007 model year will save more than 60 million gallons of fuel each year.
The Chrysler Group MDS seamlessly alternates between smooth, high-fuel- economy four-cylinder mode when less power is needed, and V-8 mode when more power from the 5.7L HEMI engine is in demand. This optimizes fuel economy when V-8 power is not required, without sacrificing vehicle performance or capability.

Chrysler Group was the first to offer modern, large-volume vehicles in North America with cylinder deactivation - the HEMI-powered 2005 Chrysler 300C and Dodge Magnum R/T went on sale in the of spring 2004 with the Chrysler Group Multi-Displacement System, or MDS. Chrysler Group was also the first to offer cylinder deactivation in an SUV with the introduction of MDS in the 2005 HEMI-powered Jeep(R) Grand Cherokee. Chrysler Group is the first to offer MDS in a pickup truck - the 2006 Dodge Ram 1500.
MDS is a fuel-saving technology that is here today customers get the power and capability of the HEMI V-8 that they desire with the fuel economy of a less powerful engine.


Google is your friend
__________________

2007 dodge ram 1500 quad cab 4x4 5 percent tint all around 35 percent windshield, ported tb, diablo sport, arh headers, magnaflow dual exhaust, magnaflow y pipe, krc210x cam,nitrous,CNC ported head. 4.56 motive
Reply With Quote
Sponsored links
  #22  
Old 06-29-2010, 08:42 PM
RamTech's Avatar
RamTech RamTech is offline
Dodge Ram Forum Senior Member!

 
Join Date: Nov 2009
Location: Johnson City, TN
Age: 44
Posts: 12,120
Gender: Male
Vehicle: 2004 Dakota Club Cab 4X4
Trim Level: SXT
Color: Bright Silver
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 15
Rep:1824
RamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant future
Default

Yeah, but Google didn't say a damn thing about how the system works.
Reply With Quote
  #23  
Old 07-01-2010, 12:14 AM
moparmike07's Avatar
moparmike07 moparmike07 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Mar 2010
Location: NY
Age: 25
Posts: 2,493
Gender: Male
Vehicle: 07 dodge ram 1500
Trim Level: st
Color: silver
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:68
moparmike07 will become famous soon enough
Default

true you are right i did do a search
__________________

2007 dodge ram 1500 quad cab 4x4 5 percent tint all around 35 percent windshield, ported tb, diablo sport, arh headers, magnaflow dual exhaust, magnaflow y pipe, krc210x cam,nitrous,CNC ported head. 4.56 motive
Reply With Quote
  #24  
Old 07-02-2010, 10:02 AM
BLKSVT's Avatar
BLKSVT BLKSVT is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jun 2010
Location: League City, TEXAS
Age: 49
Posts: 1,047
Gender: Male
Vehicle: 2010 Ram 1500 4X4 Hemi
Color: Brilliant Black Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 5
Rep:222
BLKSVT has a spectacular aura aboutBLKSVT has a spectacular aura aboutBLKSVT has a spectacular aura about
Default

Randy, Thanks for the link to this in the other thread.....question: So deactivating this doesn't create any issues?
__________________

"MPG???...I get Smiles Per Gallon!"
2010 RAM SPORT CC 4x4 Hemi
Diablo Tuner, Mufflex 14, Bilstein 5100 leveling shocks, 3.5 lift, 35 in mud tires
Reply With Quote
  #25  
Old 07-02-2010, 10:09 AM
RamTech's Avatar
RamTech RamTech is offline
Dodge Ram Forum Senior Member!

 
Join Date: Nov 2009
Location: Johnson City, TN
Age: 44
Posts: 12,120
Gender: Male
Vehicle: 2004 Dakota Club Cab 4X4
Trim Level: SXT
Color: Bright Silver
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 15
Rep:1824
RamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant future
Default

No, you just won't get any fuel economy benefits. Personally, I don't really see a point in deactivating it since there's no HP gain.
Reply With Quote
  #26  
Old 07-02-2010, 10:29 AM
BLKSVT's Avatar
BLKSVT BLKSVT is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jun 2010
Location: League City, TEXAS
Age: 49
Posts: 1,047
Gender: Male
Vehicle: 2010 Ram 1500 4X4 Hemi
Color: Brilliant Black Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 5
Rep:222
BLKSVT has a spectacular aura aboutBLKSVT has a spectacular aura aboutBLKSVT has a spectacular aura about
Default

Quote:
Originally Posted by Remerson228 View Post
No, you just won't get any fuel economy benefits. Personally, I don't really see a point in deactivating it since there's no HP gain.

But, I'm planning to put a Diablo programmer in...soooo? That would help, correct? I don't want the crappy sound with 4 cyl...
__________________

"MPG???...I get Smiles Per Gallon!"
2010 RAM SPORT CC 4x4 Hemi
Diablo Tuner, Mufflex 14, Bilstein 5100 leveling shocks, 3.5 lift, 35 in mud tires
Reply With Quote
  #27  
Old 07-02-2010, 10:49 AM
RamTech's Avatar
RamTech RamTech is offline
Dodge Ram Forum Senior Member!

 
Join Date: Nov 2009
Location: Johnson City, TN
Age: 44
Posts: 12,120
Gender: Male
Vehicle: 2004 Dakota Club Cab 4X4
Trim Level: SXT
Color: Bright Silver
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 15
Rep:1824
RamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant future
Default

Right. IF you're willing to trade the fuel economy for sound, it's ok and won't hurt anything. You just need to reinstall the stock tune if you need to take the truck into the dealer for service.
Reply With Quote
  #28  
Old 01-11-2011, 07:03 PM
dirtrider29's Avatar
dirtrider29 dirtrider29 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2010
Location: Long Island, NY
Age: 23
Posts: 177
Gender: Male
Vehicle: 2007 Dodge ram
Trim Level: slt
Color: mineral grey
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:15
dirtrider29 is on a distinguished road
Default

Whats up i got a 2007 ram 1500 5.7 hemi 4x4 and was wondering if my truck had MDS on it how would i find out? I dont think it does i just got the truck about a month ago
Reply With Quote
  #29  
Old 01-14-2011, 08:46 AM
rladieu3's Avatar
rladieu3 rladieu3 is offline
Dodge Ram Forum Newcomer
 
Join Date: Dec 2010
Age: 39
Posts: 11
Gender: Male
Vehicle: 2008 ram 1500
Trim Level: 4dr
Color: black
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:10
rladieu3 is on a distinguished road
Default

Quote:
Originally Posted by dirtrider29 View Post
Whats up i got a 2007 ram 1500 5.7 hemi 4x4 and was wondering if my truck had MDS on it how would i find out? I dont think it does i just got the truck about a month ago

i;m with you i have a 08 1500 5.7 hemi 4x4. i got used how do we know if we have it or not??? i know the chevys tell you if it has changed from 8 to 6 to 4.
Reply With Quote
  #30  
Old 02-27-2011, 01:11 AM
Ostranza's Avatar
Ostranza Ostranza is offline
Dodge Ram Forum Senior Member!
 
Join Date: Nov 2010
Location: Land O Sand, AZ
Posts: 120
Gender: Male
Vehicle: 2005 Dodge Ram 3500 QuadCab
Trim Level: Laramie
Color: Black
Engine: 2004-2004 359ci (5.9L) Cummins ISB 600 24-Valve Diesel I6 325hp 600lb/ft
Rep Power: 0
Rep:68
Ostranza will become famous soon enough
Default

nice I thought my 2004 had it but I guess not. Very nice write up. I'll rep if I can! I'm pretty rep happy these days!
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Advertisement






All times are GMT -4. The time now is 08:08 PM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum