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New Dodge Ram 6.7L Fuel Economy

16 messages,  Last post on Mar 27, 2009 at 6:51 AM

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What is this discussion about? Dodge Ram Pickup 3500, Dodge Ram Pickup 1500 SRT-10, Truck

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#1 of 16 New Dodge Ram 6.7L Fuel Economy by ibinsanediego

Feb 10, 2008 (5:37 pm)

Ok, my friend says the Dodge 6.7L diesel has the best fuel economy of all the other diesel trucks. So I go to the Dodge web page, build my truck, and then I chat with some rep asking for the highway/street MPG rating thinking they will give it since they get superior fuel economy. Instead the rep sends backs the disclaimer infomation saying "Oh, Dodge never tested their trucks, and doesn't know" (yeh, right)... But it's the same for ALL the companies. So, anyone care to tell me what they get with the new 6.7L?

#2 of 16 Re: New Dodge Ram 6.7L Fuel Economy [ibinsanediego] by kcram HOST

Feb 10, 2008 (6:56 pm)

Replying to: ibinsanediego (Feb 10, 2008 5:37 pm)
The dealer is correct about one thing... trucks with a GVWR above 8500 are not tested for fuel economy by the government or manufacturer. You have to rely on owners for their results.
 
kcram - Pickups Host

#3 of 16 I'm Buying Ford, not Dodge by ibinsanediego

Feb 10, 2008 (10:33 pm)

Would you build something without knowing exactly how it performs? I wouldn't. Just goes to show how lame they are, so it comes down to picking out one you like regardless of the fuel economy... That's why I'm buying a Ford.

#4 of 16 Dodge Ram 6.7 Diesel fue economy by m_joiner

Feb 25, 2008 (2:34 pm)

I have a 2007 3/4 ton 6.7 liter 4x4 Ram. Fuel economy is awful. The 5.9 engines would get 18-22 mpg. You can count on 13 1/2 - 15 1/2 mpg on the highway with the 6.7 liter. However, my friend has a 2008 2 wheel drive and he is getting 18 mpg with 3000 lbs. loaded in the back.

#5 of 16 2008 Cummins 6.7 fuel mileage by harriedharry

May 04, 2008 (7:57 pm)

I bought a used 2008 Laramie Quad-Cab 4x4 long bed. So far everything works fine. It had 2400 miles when I bought it; it now has 3800 miles. So far I am averaging around 16 mpg, based on actual reading of the difference in fill-ups (not the overhead fuel meter.) I hope it gets better. I replaced a Chevy 2500HD Extended cab with the 6.0 gas; it had 154000 and I was starting to make expensive repairs. I could have gone another 50,000 miles or so, but found this used truck. Where I live, it is very hard to find long bed PU.
   So far, everything works fine. Now if I can figure out the wiring so I can install the gooseneck ball and the trailer brake, I will be fine. Both Chevy and Dodge make good trucks. The last Ford I owned was a 1976 which I sold in '84 when I moved to Europe.

#6 of 16 Re: Dodge Ram 6.7 Diesel fuel economy [m_joiner] by onscenenow

Dec 18, 2008 (8:50 pm)

Replying to: m_joiner (Feb 25, 2008 2:34 pm)
I have a 2007 4x4 Dodge diesel 1 ton single axle pick up with 4 door cab. Pretty consistently, since new, I have gotten 13 -14 mpg when towing a 3 horse horse trailer fully loaded. I get about the same when towing my boat (19.5 foot Malibu Skier). Empty I get between 18-19 mpg. This is a 6.7 with six speed manual transmission that just rolled over 20,000 miles. I'm told the mpg will get better with more mileage pon the engine but I'm not unhappy with it right now, except for the high price of diesel. This thing out pulls my old Ford Powerstroke and gets way better mileage than the Ford as well. In 120,000 miles with the Ford I went through 2 automatic transmissions and 3 torque converters. At almost $4000 per tranny and $2000 per torque converter, that was some major cash. So far I'm much more impressed with the Dodge. Being a Ford fan I had to be dragged kicking and screaming to the Dodge dealer but I don't think I'd go back to a Ford now. The Dodge tows the horse trailer so well you have to look behind you to realize you're towing one. The Ford let me know it was back there on every hill, little or big. I even tried a programmer (Bully Dog) to help with the lack of power but all it managed to do was use more gas. It might even have contributed to smoking the last torque converter. The only thing my Ford had that was superior to the Dodge was a more comfortable back seat. The clean diesel technology in the Dodge makes the exhaust odorless as well and the engine is much quieter too. Obviously I'm pretty happy with the Dodge, even without a program or chip. If my mpg takes a bump up down the road, I'll be ecstatic. Maybe I had a lemon with the Ford but not so far with the Dodge.

#7 of 16 Re: New Dodge Ram 6.7L Fuel Economy [ibinsanediego] by jcunningham1

Feb 19, 2009 (7:10 pm)

Replying to: ibinsanediego (Feb 10, 2008 5:37 pm)
I have a 2007 3500 6.7 Cummins. I get about 14.5 MPG when it is running. I would not recommend purchasing the 6.7 L engine. The check engine light is on more then it is in the shop. Three of first four weeks I owned it was in the shop. Now it is injectors which I can not get for six weeks. I am going to try to Lemon law it.

#8 of 16 Re: New Dodge Ram 6.7L Fuel Economy [jcunningham1] by mckenzie101

Feb 23, 2009 (8:40 am)

Replying to: jcunningham1 (Feb 19, 2009 7:10 pm)
I have a 2007 also. My Truck is a Mega Cab dual rear wheel 4x4. I had about 3 weeks of down time in the 1st 30,000 miles. So far all that's wrong is the engine light stays on constant but I've noticed better fuel economy 16mpg. I now have 50,000 miles. There were two trucks at my local Dealership that were supposed to be lemon lawed. A big construction company from Tampa bought 40-50 units and two trucks with the 6.7L gave them a lot of problems. Those two were on a ranch or hunt preserve. I think people who drive local tend to have more problems with turbo and exhaust system.

#9 of 16 Re: New Dodge Ram 6.7L Fuel Economy [ibinsanediego] by 03fuelmizer

Feb 23, 2009 (6:53 pm)

Replying to: ibinsanediego (Feb 10, 2008 5:37 pm)
Fuel economy is only what you make of it, for instance my 03 3500 fully stock gets 30.6 MPG, 55 mph that is. If you drive the tar out of it it gets worse. Shift patterns and acceleration are key factors in fuel economy.

#10 of 16 6.7 4.10 or 3.73 rear by gs131

Mar 05, 2009 (12:54 pm)

currently have 2003- 2500 with hemi and 3.73. Mainly use truck to pull RV trailer.plan to move up to 5th wheel in the 14K to 16K lb. range.
from all Towing Guides I've looked at, I'll need the cummins/ 6 spd auto/4.10 set-up to get to the 16k. Hemi, with 6,500 (+/-) trailer getting about 7 to 9 mpg when towing. ( at about 60-65 mph) How's that going to compare to the 6.7 / 4.10.
Would REALLY like some actual experience ........going tomorrow to possibly buy
a 2009 3500 dually...............Thanks

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