I m in the process of buying an 07 6.7 l 3500 4x4 Megacab for the wife two questions

1) - What fuel milage # s are people seeing - Real #s
2) - Are the problems with the 6.7 L worked out ? and dont say there were not problems - my dealer in alberta - had to take back an 07 6.7 cab & chas. truck do to problems they - dealer - dc could not fix.

Thanks

Well I had my for almost a week now the mileage started off about 13 mpg and now I am about 16 mpg with 700 miles on it. So far I like it alot.

we have our since 1 month...compare to a 5.9 expect to lose 1 or sometime 2 mpg.....due to the dpf regeneration when need it..and all the crappy stuff on the engine!!

but i must admit...the truck have now 2500 kilometer..(1562 killes) on it,and the tip exhaust is clean clean clean.......when i put my finger to check for the soot!!!:cool:

Rstone, is your 2500 a cab & chassis????

Rstone, is your 2500 a cab & chassis????

Can't get a 2500 C&C... he just has an amalgamation of transmissions listed in his signature.... [duhhh]

I m in the process of buying an 07 6.7 l 3500 4x4 Megacab for the wife two questions

1) - What fuel milage # s are people seeing - Real #s
2) - Are the problems with the 6.7 L worked out ? and dont say there were not problems - my dealer in alberta - had to take back an 07 6.7 cab & chas. truck do to problems they - dealer - dc could not fix.

Thanks


1) fuel mileage - +-10 mpg pulling a trailer, depending on load, 15+ running bobtail
2) don't know about any problems, I have 31,550 miles on my truck and haven't done anything but change oil and filters. You are the one that mentions problems, what were they. I see you are in Canada, if they are the ones with the stopped up DPF, I believe that was traced to long idleing and running the wrong fuel. If there is something else, I'd like to know about it myself.

Well I got confused I thought that the 68re was a aisin transmission but I got it fix now

I thought you could always get a 2500 cab & chassis???? but the Aisin was the reason for the question, Dusty

You can definitely get a SRW cab & chassis.

I thought you could always get a 2500 cab & chassis????

To my knowledge, they are not producing a 2500 C&C. They are producing a SRW 3500 C&C.

I think you can order a 2500 and select the Bed Delete option. You get ripped off by only getting a $400 credit. Much smarter to buy the truck with the bed and sell the bed or part it out.

The CC is 3500 only. 2500's would be considered a box off.

With just less than 5K on our truck we are seeing about 15-16 mpg in the city 12-13 with a 24ft unloaded flatbed and anywhere from 7-10mpg loaded. Our biggest load we have tested with was 14K lbs plus the trailer weight and we were fighting a 20-25moh headwind. We got 6.8mpg running 70mph.

I can tell you there is a large difference from 70-75mph as well. The rpms stay low but if the boost gauge is above about 4-6psi it is drinking fuel!

Any idea what the city/hwy mileage would be on 2500 4X4 CC with the 6.7 and 68rfe with 3.73 gears?

Trying to figure out if I would break even after 5 years/150,000 kms versus a gasser. I know you have to consider resale, maintenance and interest as well.

Thanks.

Any idea what the city/hwy mileage would be on 2500 4X4 CC with the 6.7 and 68rfe with 3.73 gears?

Trying to figure out if I would break even after 5 years/150,000 kms versus a gasser. I know you have to consider resale, maintenance and interest as well.

Thanks.

and TORQUE...and POWER...and all of those ENVIOUS LOOKS!

07 6.7 4x4 4door LWB

I am seeing 14.5 city and got 19.2 on first road trip to NM from Tucson with the cruise set at 78. I have a total of 1800 miles on truck tokk delivery 3-22.
Have not been able utilize the engine brake to it fullest extent but will the weekend pulling about 12,000 lb load.

Scott

07 6.7 4x4 4door LWB

I am seeing 14.5 city and got 19.2 on first road trip to NM from Tucson with the cruise set at 78. I have a total of 1800 miles on truck tokk delivery 3-22.
Have not been able utilize the engine brake to it fullest extent but will the weekend pulling about 12,000 lb load.

Scott

You have the 68rfe?

What gears?

I am getting around 17-18 on highway with crusie set on 70 I have right at a 1000 miles on it

Thanks for the replys - looks like the 6.7 is doing way better than my 6.4 L. for fuel milage.

Thanks for the replys - looks like the 6.7 is doing way better than my 6.4 L. for fuel milage.

generaly the i-6 has always been better on the fuel millage....since the beginning!! if you look back in 1989!! the firts 5.9 was better on fuel milage than its competitor at the time..6.2 or 6.9/7.3.....and i don"t think it will be a exception again!!!:cool:

WOW, I have not got my new truck yet and I am already in lust.
Fred

I m in the process of buying an 07 6.7 l 3500 4x4 Megacab for the wife two questions

1) - What fuel milage # s are people seeing - Real #s
2) - Are the problems with the 6.7 L worked out ? and dont say there were not problems - my dealer in alberta - had to take back an 07 6.7 cab & chas. truck do to problems they - dealer - dc could not fix.

Thanks

1)Thats exactly the truck I have ( + 4X4 etc) = 17,3 ltr/100km.
Mind you , that's only in town so far, not even 100 clicks on it.

Considering my Voyageur gulped ~ >12 ltrs ...
2)Truck is just grrrreat ...

Ahhm, re .extended warranty : apparently on the 16th of this month , the bumper to bumper warranty gets bumped up CAN $1400 in price so it would run ~ CAN $ 4.800. Yikes.( I actually saw the note from DaimlerChrysler to the dealer)
So to get me an extra 4 years of peace of mind ( year 4/5/6/+7) I have to come up with , and fork over ~ CAN $3.400 in the next few days .. Yikes again..:cool:

I am still waiting for someone to tell me what the problem supposedly was on those two trucks that supposedly couldn't be fixed. I really have to wonder when someone just pops up a problem but never gives any specifics.

I will find out tomorrow - the dealer here still has the truck.

Alright was at the dealer today - they have had a few techs out to try to get the truck to run right, according to the salesman - they have tried 3 different computors -( his words ) in it and still cant get it to run right, a welder owned it for a short time before the dealer took it back - he took a 5.9 L. as he needs a reliable truck. The truck will only get 3 mpg & wont run right.

They have another tech comming out this week to trouble shoot the 6.7 L.
I suggested that maybe it had the old fuel ( non ulsd)- mabe plugged the DPF. But im sure they would have checked that.

On a differant note - I test drove another 07 6.7 L. megacab 3500 4x4 - drove it on the hwy for 25 miles the overhead showed 19.6 - 20.1 MPG @ 100 km/hr average thats the highest mpg reading of any cummins I have personally drove ! Im impressed if thats right or even close.

You have the 68rfe?

What gears?

I have the 373 gears with the 68rfe. as a side note my 2500 came with the 11.5 rearend (1 ton) instead of the 10.5 the 2500 normally comes with. The dealer was not able to explain why but thought it could be cause of the extra tourqe the 6.7 is putting out. I showed 13.2 mpg pulling the backhoe this last weekend in some hilly country and the engine brake was a plus.

I am getting around 17-18 on highway with crusie set on 70 I have right at a 1000 miles on it

my numbers are similar to yours with the same setup!

they all come with the 11.5, even my 03 has a 11.5. The only difference between a 2500 and 3500 is a spring leaf. and about 350 - 500 dollars.

Red ram,, just so you know, the gallons that are computed in the overhead are us gallons, much smaller than our imperial gallons, so it puts the overhead out of whack if you try to read the MPG.

The MPG that you guys are getting is IMO very good for trucks with only 1000 to 10000 miles on them, they usually will get better around 15k or so. I have a duramax besides my 03, and I am getting 13mpg, and that is pussyfooting it

Kevin

It's looking like the 6.7's aren't the fuel hogs you would think with bigger displacement and about everything ever done for emissions on it.

they all come with the 11.5, even my 03 has a 11.5. The only difference between a 2500 and 3500 is a spring leaf. and about 350 - 500 dollars.

Red ram,, just so you know, the gallons that are computed in the overhead are us gallons, much smaller than our imperial gallons, so it puts the overhead out of whack if you try to read the MPG.

The MPG that you guys are getting is IMO very good for trucks with only 1000 to 10000 miles on them, they usually will get better around 15k or so. I have a duramax besides my 03, and I am getting 13mpg, and that is pussyfooting it

Kevin

For some reason my 4x4 2005 2500 5.9 only has the 10.5 axle

The Dealer is now telling me that these trucks ARE NOT TO DRIVEN LIGHTLY ..they are NO GOOD for short trips at all. My 2007 has 3500 miles on it and this is my 3rd time back to the dealership to get it de-sooted...reflashed and who knows what. If your going to work a truck hard THIS IS A GOOD TRUCK ENGINE. THIS IS NOT A LIGHT DUTY TRUCK!!! I wish I never traded my 5.9 in.
Bud

Now a new turbo is needed after 3500miles...sure glad I'm not paying for it...what a shame..a great truck..great engine..EPA is making it un-useable for the average driver.
They want to make a more pollution free engine...but the engine needs to use more fuel and run harder..longer ..to run right...where is this helpping anything?
Anyone got any answers?

I sure wish I could strip the drivetrain down to the bare bones killer package the truck is...and to hell with the warrenty or EPA...Guess I need to find a 2006....Right?

I am getting around 17-18 on highway with crusie set on 70 I have right at a 1000 miles on it

Dude , its a 6.7 forum! we all know what kind of milage a 5.9 gets, but thanks kindly for your input.[redface]

Now a new turbo is needed after 3500miles...sure glad I'm not paying for it...what a shame..a great truck..great engine..EPA is making it un-useable for the average driver.
They want to make a more pollution free engine...but the engine needs to use more fuel and run harder..longer ..to run right...where is this helpping anything?
Anyone got any answers?

I sure wish I could strip the drivetrain down to the bare bones killer package the truck is...and to hell with the warrenty or EPA...Guess I need to find a 2006....Right?

I wish they would issue a recall and yank out the DPF on all the trucks. Even if you work the truck the DPF still cycles on all the time. I figure I spent an extra $50 last month burning off soot. I wish I could get my 06 back I fell for the $13,000 discount I got because it was on the lot for 2 years, now I know why they are having to offer such huge rebates.

RAD RAM I have 16k miles on my 07 6.7 auto with 410's.The truck get,s 12 mpg and 9.8 to 11 pulling a 2500 lb trailer.The truck has been back to the dealer 8 times for dpf related problems.The dealer told me to change my driving style to help the dpf regenerate.The dealer has no fix for the problem nor does Dodge.If your new truck will spend most of it's time on the interstate you will probably be fine, if not get ready foe the check engine lights and the overhead messages.

All of this data is hand calculated - I don't bother quoting what the overhead says. None of this is towing.

The first tank when new running highway miles unloaded was 17.8 mpg, driving speed varying between 60-65 mph. Commutes daily to and from work yields about 16 mpg (highway miles but some stops that really hurt mileage).

Now with 20,500 miles it has been getting 18.8-19.3 mpg highway and not much better for the commutes - a bit closer to 17 mpg. AX flash seemed to drop mileage slightly. Most fuel is BP (Amoco) or Cenex where I could find it.

as in my sig, i have a 08 mega single rear tires. 2x4.
my average is 16-21 depending on route taken. on level road at 65 mph i've seen 23 mpg. i keep my tires at 70-75 lbs.
scales have me and the truck at 7850 lbs unloaded.
i have just over 12,000 miles on the truck.
towing i'm getting 9-11 mpg with the trailer in my sig.

don't forget the rear axle ratio. i have 4.88 gears for towing on my 5500, 4x4 quad cab/chassis (no bed on back) 164 wheel base and in town, San Jose, CA with way to much traffic and traffic lites, no load or towing i get less then 11mpg. condidtions vary way to much to get a good comparrison. at my home in Deming, NM my mileage is much better in town, few vehicles and fewer stoplites. and my overhead console is 2-4mpg off. very little highway driving. 3000 miles on odometer

failed to mention of course 6.7 but have 6sp automatic. had 6sp manual on 04 liked to have killed my leg on the clutch, said no more standards.

OK, my 2008 Mega 4x4 now has 10,000 miles. All is stock, I ordered the BFG upsized on-off road tires and I have a Leer canopy.

I've averaged 15.90 MPG to date. I'd say an average of 80% highway of which 80% has been pulling a flatbed trailer with two loaded rafts - say 3.5K lbs with trailer. I just pulled the trailer to Idaho and back for a raft trip, got 16.9 MPG on that trip. I did a 600 mile empty interstate trip 30-days ago and got 19.82 MPG. I almost always drive 55 to 60 MPH.

The good news is that I think there is a positive trend in MPG with a few more miles. Based on the mileage on recent longer trips, I think the average over the last several thousand miles would be maybe 1 MPG higher - but it could be summer fuel too.....

If anyone has a silver bullet, I'd sure appreciate any hints to increase the fuel mileage. I'll be doing a 3,000 trip in two weeks hauling the trailer with four people - a couple extra MPG would be nice.

I do love this truck. The power is great, the EB is great, brakes are OK. The back seat is epic!

All stock 2007, 2500 quad cab, 6-speed manual with 5,000 mile and am seeing 14.7 hand caculated MPG. This was mostly highway drivig at 70 MPH. alittle dissapointed but love the truck. Have not towed that much as of yet

Patience Grasshoppers! @ 15,000 miles I just completed a lengthy interstate trip and got 18.5 mpg @ 68 mph hand calculated. 2 months ago 17.5 mpg @ 72mph (13,000 miles). @ 6,000 miles, I was struggling to get 16mpg. Truck is all stock.

My 07.5 6.7L has been in the shop for "emissions" related repairs 13 times in 45,702 miles. I ***** and moan...but I have driven 31,447 miles since 1/01/08 and used 1899.05 gallons of fuel. Highway miles are about 65% of the total. The overall average for all driving is 16.559 MPG. I have not checked my previous vehicle ( F150 5.4L ), but if my recall is correct, it was slightly below the Cummins.

Hello all-New to the forum, have been thinking about trading in my 04 on an 08, a friend told me the 08's have so many problems that my 04 will be worth more in five yrs than the 08. Most of the posts here indicat thats probably not true. What is/are 68rfe, DPF? I can see I have been out of the loop for awhile.

Doc

68RFE is the 6 speed automatic transmission. The DPF is a Diesel Particulate Filter, essentially it catches soot then when it gets close to plugged up it increases how much fuel goes into the engine and burns off the soot.

my mpg average for the last 500 miles about 25% highway and the rest city traffic in the SF bay area hand calculated at 12.4mpg these are miles no load or trailer.
talked to friends at dealership here and they said the 6.7 is generating a lot of complaints. knowing what I do now i would not buy one for at least another year maybe two.

07.5 Mega dullie with just a AFE intake I get 17.8 empty and 11 to 13 towing my 38ft Fuzion loaded. I have had no problems so far it has 13,700 miles on it. Was hoping for more MPG but will wait and see.

With my Superchips Cortex and Airaid intake kit, I get almost 20 on the turnpike and about 16 around town. I LOVE MY TRUCK!!! ZERO PROBLEMS!!