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Dodge/Ram Diesel Discussions on all generations of Cummins Diesel powered Rams plus the new Eco Diesel

6.7 Blue TEC Diesel

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  #1  
Old 02-17-2008, 09:43 AM
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Buford445 Buford445 is offline
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Default 6.7 Blue TEC Diesel

Hi new to this ! I am looking to buy a new or used 2500 diesel and i am seeing the new Blue TEC ,does anybody have any info these
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  #2  
Old 02-17-2008, 10:25 AM
sabersix sabersix is offline
 
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Default RE: 6.7 Blue TEC Diesel

BlueTec is the emissions hardware installed on all 6.7L Cummins engines. It consists of a diesel particulate filter and an exhaust gas recirculation system. The soot from diesel combustion is captured in the dpf and periodically reduced to ash by raising the temperature level in the dpf by a process know as regeneration. Soot and NOX emissions are significantly reduced by BlueTec and meet the upcoming 2010 emissions standard for diesel vehicles.
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Old 02-17-2008, 10:32 AM
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Default RE: 6.7 Blue TEC Diesel

Does this hurt power much, and do you know if they still offer the 5.9?
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Old 02-17-2008, 10:39 AM
steve05ram360 steve05ram360 is offline
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Default RE: 6.7 Blue TEC Diesel

welcome to df...

you might be able to find an '07 with a 5.9 motor (I think)... IIRC they offered the '07s with a 5.9. I personally would go with the 5.9... too much emissions crap on the new ones IMO.
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Old 02-17-2008, 01:46 PM
sabersix sabersix is offline
 
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Default RE: 6.7 Blue TEC Diesel


Quote:
ORIGINAL: Buford445

Does this hurt power much, and do you know if they still offer the 5.9?
The 6.7L is rated higher than the 5.9L in horsepower and torque. Having driven both, I'd say the 6.7L feels stronger, especially with the new 6-speed automatic transmission (only available with the 6.7L).

The 5.9L engine was available up till Jan 2007, so you can still find leftover 2007 models that have the 5.9L (but it is getting harder to find).

There have been some "teething" problems with the BlueTec stuff, so many are waiting to see how the 6.7L will do. My 6.7L truck has been mostly trouble free. Some have had major problems, many have had none. Roll the dice...
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Old 02-17-2008, 02:52 PM
handymanherb handymanherb is offline
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Default RE: 6.7 Blue TEC Diesel

Get the 5.9 and don't look back,
I driven the 6.7 450 miles and was not impressed, it was turning a 1000 rpm less at 70 but using a lotmore fuel than my 5.9 on the same trip and it seemed a little louder, and I expected it to make my 5.9 seem old.

Now the megacab was nice, but then I don't get to sit back there much, but all kind of storage room for tools, but then you you have an A/C that's not rated for that big cab and it runs and little on the hot side and you have to run in recirc to keep it cool.
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Old 02-17-2008, 08:55 PM
reddodge98 reddodge98 is offline
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Default RE: 6.7 Blue TEC Diesel

we got regen systems on T800 kenworth trucks with cat C15 engines. but these trucks got a spark plug, and when they regen they actually spark diesel fuel into the exhaust system and burn every bit of soot in the system. works pretty good, but its the first year of installment and 1st year of anything dont ever work the best.
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Old 02-17-2008, 09:06 PM
dirtydodge02 dirtydodge02 is offline
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Default RE: 6.7 Blue TEC Diesel

Speaking of 6-speed auto's, anyone expressed any interest in making a swap to this tranny on their 5.9?
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Old 02-17-2008, 09:37 PM
MARSJE_28 MARSJE_28 is offline
 
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Default RE: 6.7 Blue TEC Diesel

Hey Buford445, Im kinda new to the Diesel worldtoo, andI just bought an 07 2500 Big Horn with the 6.7 Cummins equipped with the Blue-Tec equipment. All I can say is that I'm in love with this truck! I have read alot of posts in this forum that down the 6.7, and I guess there have been some problems with the truck but there are a few things to keep in mind. These are engines that love to be driven, and have been built to last. Also, there is alot of literature on the 6.7 in the owners manual that is very specific on how to operate this system ie... hints, tips, and tricks to avoid going to the dealership to get your ECM reset every week or two. I personally dont haul heavy loads, and dont plan on it in the near future, but I bought this truck because it was exactly what I wanted. I hope this helps.
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Old 02-23-2008, 04:36 PM
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Default RE: 6.7 Blue TEC Diesel

I would like to thank everybody for there reply's. you have helped me a lot
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Old 02-24-2008, 11:55 AM
Az2500Cummins08 Az2500Cummins08 is offline
 
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Default RE: 6.7 Blue TEC Diesel

I have an 08 6.7 Ram, I have put 3500 miles on it so far and I LOVE MY TRUCK. I don't like the DPF, but I wanted brand new. I am sure somewhere down the line someone will come out with an aftermarket unit that is less restricting. I have more power than I know what to do with. I was driving down in Austin last saturday, it was raining out and I down shifted and gunned it and broke the tires loose at 40MPH. I say get one. the only problem I have had so far is an oil leak, which is my fault for straining my engine without it broken in. Oh, and it is a towing monster.
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Old 02-25-2008, 07:01 PM
agargano98 agargano98 is offline
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Default RE: 6.7 Blue TEC Diesel

when my warranty is up i am ripping the DPF out and doing a regen delete. it destroys your fuel mileage.
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Old 02-25-2008, 07:18 PM
Az2500Cummins08 Az2500Cummins08 is offline
 
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Default RE: 6.7 Blue TEC Diesel

What is this DPF delete box at? What is it exactly? Where do I find it?
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Old 02-25-2008, 07:33 PM
Joel_MD Joel_MD is offline
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Default RE: 6.7 Blue TEC Diesel

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ORIGINAL: Az2500Cummins08

What is this DPF delete box at? What is it exactly? Where do I find it?
I created a thread about this in December. There is a company called H&S Performance that has a "DPF Delete Kit" that contains a flanged pipe and a black box. See my post: http://www.dodgeforum.com/m_1082670/tm.htm
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Old 02-25-2008, 07:38 PM
agargano98 agargano98 is offline
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Default RE: 6.7 Blue TEC Diesel

the DPF is a particulate filter in your exhaust system. the regen cycle is controlled by the ECM. there are a couple companys working on the kits now. i am going to do a turbo back exhaust (straight 5" pipes, no cat, and free flow muffler). and the regen delete will be a black box you plug into the electrical system.
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Old 02-10-2011, 10:01 PM
John Rez John Rez is offline
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Default Diesel Fuel Economy

Considering a used 2008 Ram 2500 with a 6.7 Cummins Blu-Tec. I'm aware of the DPF (Dual particulate Filter) in the exhaust and all the emissions compliant equipment added for stricter emissions standards. Want to know what the realized fuel economy of the truck is. For city, highway and does the mpg degrade with trailer tow..

My questions are this: Any owners of 6.7 liter Blu-Tec Cummins Diesels have city/highway/towing fuel economy numbers to share? Top off the tank and reset the odometer type calculation. Does it correlate with the overhead average mpg calclation of the "computer" if so equipped?

As a $13K option over the 5.7 liter gas engine, how much better is the diesel option?

Any shared experience appreciated.
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Old 12-19-2011, 03:30 PM
Louis72c Louis72c is offline
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Quote:
Originally Posted by John Rez View Post
Considering a used 2008 Ram 2500 with a 6.7 Cummins Blu-Tec. I'm aware of the DPF (Dual particulate Filter) in the exhaust and all the emissions compliant equipment added for stricter emissions standards. Want to know what the realized fuel economy of the truck is. For city, highway and does the mpg degrade with trailer tow..

My questions are this: Any owners of 6.7 liter Blu-Tec Cummins Diesels have city/highway/towing fuel economy numbers to share? Top off the tank and reset the odometer type calculation. Does it correlate with the overhead average mpg calclation of the "computer" if so equipped?

As a $13K option over the 5.7 liter gas engine, how much better is the diesel option?

Any shared experience appreciated.

For 3 years I had 2005 Ram 3500 4x4 with the 5.9 and a 4.10 diff
In 2008 I traded it agaist a new 2008 Ram 3500 4x4 with the new 6.7 and a 4.10 diff
So both trucks were identical except for the engine and tranny.
I haul about 15000 lbs every day so I saw a big difference in towing capacity with the new one. Better accelaration and much quieter than my 2005. When hauling i get better mpg with the 2008. About 7.8 mpg versus 7.2 mpg with the 2005. However my 2008 will be harder on fuel when empty. I will get 14 mpg with my 2008 and i did 15 mpg with my 2008.
This is all calculated mpg not from the trip computer which can be almost 1 mpg off.
Hope that helped
And by the way i never had problems with either truck. I had my 2005 for 3 years and I now have my 2008 since april 2008 and I NEVER had a mechanical problem even though I haul 15000lbs EVERY DAY!!!
My friend, who does the same work I do, has a Ford and can't say the same!!!!
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Old 12-19-2011, 08:32 PM
horatio102 horatio102 is offline
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I hauled a 15,000 pound trailer about 4800 miles across the country, from WA to FL, with my 08 (6.7, 68rfe, 3.73 gears) and averaged 12.5 mpg over the entire trip. Up and down the Cascades, Rockies, up the 10% grade to Mt. Rushmore, back down then up to Denver, back down and then up into the Blue Ridge Mtns, and back down to the sea in FL.

The trailer had 12,700 pounds sitting on the tires, and I know the tongue was loaded at least 15%.

I was running an AFE 4" turbo-back exhaust, EGR delete, Black Maxx programmer, and an Airdog 150 lift pump.

Not having the emissions equipment makes a difference. The trip across the country was done in the low and medium power settings.


The three weeks before I started putting my truck back to stock (selling), I drove the truck like a responsible adult and averaged about 16 mpg commuting to work. My commute is ~10 miles of 40-50 mph in-town highway with stop lights every 1/2 to 1 mile or so.

On the highway, 18 was about as good as I could get consistently.


Prior to doing the deletes/programmer, I averaged about 15mpg on the interstate at ~70.
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Last edited by horatio102; 12-19-2011 at 08:38 PM..
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Old 12-20-2011, 07:52 AM
Louis72c Louis72c is offline
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The 3.73 diff will give you much better mileage than a 4.10. You will get about 3 mpg more.
95% of my driving is done in the city so that also kills my fuel economy. I chose the 4.10 because my truck rarely sees the highway and I sometimes( often) will load up to 20,000 lbs. The 4.10 gives me much better accelarations.
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Old 12-26-2011, 11:15 AM
tiger63 tiger63 is offline
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Stay as far away from the 6.7 with the EPA required air quality controls.

Any thing produced after 2003 has this attempt by your goverment to cost you heart ache and mucho money until you give up warrenty and make after market changes.
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Old 12-26-2011, 11:15 AM
 
 
 
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2008, 67, 67l, big, blue, bluetec, cummins, diesel, dodge, fuel, horn, oil, problems, system, tec

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