Cummins Diesel Forum banner

Wanted to ask this question? MPG/REGEN etc

1.8K views 16 replies 9 participants last post by  pparki5  
#1 ·
First off: I use my truck for towing and other requirements. Totally satisfied with my 7.5; would buy another in a heart beat(stock) I am relatively new to the forum; but I do read and digest it in detail. My curiosity is:
1. People who drive locally or limited, complain about regens, etc.
2. My 2500 is HD will tow anything ask of it. But the MPG will act accordingly.
Question? If you are looking for a car/truck combination,why not buy a vehicle that will do the domestic work, get relatively decent MPG. Plus will haul, tow(within reason), and do other truck related task's,in the 1/2/3/4 ton range, but without the hassle of maintaining a costly hight priced diesel platform.
3. I am not a mechanic; but I have had some engineering exposure. I believe that you can mod a 1/2/3/4gasser, to obtain even better mph,HP, plus eliminate the regen /emissions problem as well(at a lower price tag).
The 2010, 2500 Hemi, with cylinder deactivation, appears to be a winner in that category,(has excellent MPG rating). The truck is basically the same as the 6.7 minus the heavy duty stuff that a diesel platform requires. It appears, that some folks have a love/hate relationship with their diesel. ( I constantly read the junk word )
This in not a frivolous post; but for me, a learning exercise.
 
#2 ·
I understand what you are talking about with the gasser however i all depends on what your hauling a 4ton load is not much to these trucks and i gasser could do it but the mileage would not be good. for example my mom has a 96 ford f250 w/ the 460ci and it gets left hooked up to the 2 horse tailer, towing the tailer w/ two horses it get about 5-6mpg. next many people on here tow alot more then 4tons my advage load is 6tons my haviest load was about 12tons, you can try to tow that 12tons with your gasser and best of luck to you and let me know what kind of mileage you get.
 
#3 ·
you couldnt give me 2 of those hemi trucks for my truck..... ill tie to them and drag them both! gassers are way over rated for pulling my truck gets 18.6 mpg by the way...
 
#4 ·
smitty57gob: Sorry you did not understand my post. I ask, why do folks who do not tow or require the additional diesel capability? 1. Buy a 6.7, use it as daily driver. 2. Complain about the mpg ( Is outstanding compare to a gaser, towing). 3. Complain about the high maintenance cost. 4. Complain about the regen/emissions etc. My ?. Why not purchase a cheaper 1/2/3/4 ton gaser as a daily driver at a lower average cost. Plus no complains. Would offer some degree of LIGHT towing, and limited truck bed carrying capability. Could also be moded for smoking the competition. Tell me about the F250. I owned a new 86, with 4 barrel holly, 5-8 mph, towing or not. Warranty. 12 month 12000. Want bore you with the problems with that truck. I could write off the repair costs as business related. If not, would have taken a second part time job. I love my Dodge 7.5 (stock)
 
#5 ·
cummins firefighter: Please reread my OP. I am talking about folks who own a 6.7. Do not have a need for the 6.7 (other than modding) But yet complain about, mpg, emissions ,maintenance cost, flashing etc, etc, etc,. Get upset and complain that I broke my truck,because Dodge make me do it, by building a junk truck. I wonder why they don,t stick with a gasser??? Or I only drive a short distance to work. Personally, I tow a 10000 lb Air Stream. That's why I purchased a 6.7. Two more years I will order another one. Hopefully the next gen cummins. Same as you; I wouldn't trade my 7.5 for two gassers!!
 
#6 ·
well you cant blame dodge or cummins for the issues around the 6.7. All of these issues are related to the dpf or egr.. and those are EPA mandated the EPA doesnt care what it costs to keep your truck moving.. or how long it takes.. i know thats not your question either
but maybe they wanted one.. like me i dont need one i WANT one i could do all the hauling i to with a toyota. most people are just afraid to mod a truck thats under warranty I guess there is no real answer other than i guess they wanted one....
 
#7 ·
CumminsFirefighters :You probably hit the nail on the head. Because they wanted one. In my opinion that is a good reason. My 7.5 is approaching 3 years service,27000 miles.0cel,0regen(that I can tell) 0 code.Reasonable MPG ( I do not exceed 60/65 towing) I follow the service table. Using my truck as a template, I am still trying to determine, what issues, are we talking about. I think some folks make have experienced the PLACEBO effect.or, the duck analogy : If I don't have a problem, then I will make one, which will prevent me from having a problem!! Maybe I am wrong, but it is interesting.( My son in law is a firefighter). Good luck.
 
#8 ·
my 08 is a daily driver, i donot tow, very rarely haul anything that wont fit in the bed. i love it, i ave several mods, but to own a truck that WILL pull or tow anything i can hook to it, run a low 13 in the quarter and still get over 20 mpg is an all around perfect vehicle, my kids love it, i love it, and te wife is k with it. what more do you want.
 
#9 · (Edited)
warlock06: your post is interesting. Data that I am interested in. You are honest;modified it for the power. But you don't slam the truck, as to it's excellent qualities. I constantly read about problems that are posted. The slamming of the truck. But when I read these posts; 90%- 98% of the complains, are posted by folks with power mods, over sized wheels, lifted, death wobble, etc. In some cases they justify their mods;stating, that the truck was junk as the reason for the mods. Even slam the suspension and batteries as junk.(my batteries are still strong, even with heavy use) Then they accuse the dealers, as being rip off artist; when they question the mods for warranty repair. When they are the ones who have modified the parameters of the basic design. Another good one. Modified because of the issues???? What issue! My truck is perfect for what it was designed for.
 
#10 ·
PPark, I bought my 6.7 as a daily driver into Atlanta and back 100-110 miles a day.
I will never ever use the power this beast delivers BUT with a small investment (under a grand) ie tuner/egr plate/turbo back exhaust, I get the better mpg than my 5.3 silverado as well as a motor that will last me to 400k, instead of the 200 you can expect from a gasser, as well I can go up to 10k between oil changes instead of 3.
My only complain is the ride of the truck but what do you expect from a 2500?, and I can fix that with a suspension upgrade ie Carli if I want to spend the money.
And I wont lie, there is something to be said about the feeling of having that Cummins engine under your foot....adds quite a few man points if you ask me!!
I know the cost of keeping the truck running is higher, but if it lasts twice as long as a gas truck then its worth it to me.
 
#11 ·
I bought my 08 as a daily driver and it's bone stock. My commute for the last 7 years has been 1 mile (soon to change to about 15). Biggest reason I bought a diesel is because of the better fuel economy. Even with the regens, my fuel ecomomy is nearly twice what I was getting on my 03 1/2 ton dodge with a 4.7 (that motor does not belong in a full size pickup).

Biggest reason for getting a diesel? Because it's a cummins. better economy. great to know that I can throw anything behind it and not look back. It's a cummins.

I think people are going to complain about economy no matter what they have and they're always going to try to get as much as possible out of whatever they've got.
 
#12 ·
I replaced my half ton with the 4.7 with a 2007.5 2500 with the 6.7 diesel because everytime I went up a hill pulling a 5000lb camper I thought the engine was gonna blow.

I don't really need all the power the 6.7 delivers (yet) but might some day. I do use it as my daily driver and it gets better mileage than the gasser did.

One last point. I didn't really need to bus the Cummins, but it was what I wanted and I can afford it. So in the end why shouldn't I get what I want?
 
#13 ·
All posts are interesting. No one has slammed the 6.7. The following is extracted from the Towing Guide, a Supplement to Trailer Life, 2007, Edition. I used this data when I was shopping for new TV: It covered all available tow units(Ford/Chev also). From Daimler Chrysler," On Ram 2500/3500 models a 6.7-liter Cummins turbodiesel will replace the current 5.9-liter high-output engine as of Jan2007.The new engine will produce a class-leading 350HP and650lb-ft torgue, delivered to the rear wheels via a new six-speed automatic transmission. The HD models will have a towing capability of up to 16,200 pounds, and a payload of up to 5,110 pounds. Daimler has also stated,Cummins has tested and assured, that break down for rebuilt may only be required in the 350,000 plus mile range. 100000 more than other available power trains. That info sold me at the time. I don,t expect the EGR to eat my engine any time soon.
 
#14 ·
You seem to be under the assumption that 100% of the people that have a diesel or want to purchase a diesel should tow 100% of the time. In reality that just isn't the case for everyone.

Your logic is flawed in so many ways in your first post. People don't always buy a vehicle just for what the vehicle was intended to do. Even if they did, they may not use it for that intended purpose 100% of the time. You say that you have no issues with your truck. There are many people in these forums that also do not have issues and some of them don't tow much if at all.

You seem to forget that people with problems post to forums and generally people that have no problems do not post to forums. So yes, in reality you will see far more problem posts then you will see of people claiming thier truck is perfect. It's the nature of the beast.

It's also fact that there were more issues with the 6.7 when it was released in 7.5 then there are up to this point. Why? You seem to think because you have not had any problems that none exist. Dodge has released new software and upgrade/changed some of the systems in the Dodge since the 7.5 release. This in it's self shows that there were legitimate issues previously and that Dodge has worked toward correcting some of them.

Yes people will buy a diesel just because they want a diesel. I am one of those people. People also don't expect a vehicle of this magnitude to have some of the quality issues that it has been known to have in the past. Regardless of your personal experience, there have been problems with the 6.7 that a lot of people have experienced. That doesn't mean everyone has or will.

My last truck was an 04 Dodge diesel with the 5.9. I didn't have to drive 10 miles on the interstate to get a full regen like I do on my 09. The diesels have more or less taken a step backwards in this regard making them far more frustrating and inconvenient. Why should someone who only tows 12 tons once a month be penalized over someone that tows daily over 4 tons? With the 5.9 you didn't. With the 6.7 you do but I accept it more then most but that doesn't mean I have to like it and it certainly doesn't mean I can't complain about it.
 
#15 · (Edited)
aceracer24: Your response is very informative. I agree with most of it. If you will look at my OP, I used the term CURIOUS, in my opening. Basically, this whole exercise is my fascination of human behavior. In a nut shell. Why do folks response, act out, or take other action that appears to be against their own self interest. I will give one example: A person will purchase a $45,0000-$50,000 6.5 from a dealer. Have a problem, Will post on the forum ,outlining the situation and seek repair advice on this expensive purchase,from folks that he has never met,plus doesn't have the foggiest ideal as to their mechanical ability. But appears to take the advise,rather than take the truck back to the dealer to which he has just handed a bag of money.That action alone, to me is fascinating . I have noticed this request, on numerous posts. They might not act on the advise. But the act of requesting repair info is certainly interesting. At least to me. I want to thank all who responded to this thread, to me, the posts have been a learning experience. Again thank you!!.
 
#16 ·
We ask the advice of others on this site because many of the people who have responded to the many questions have had the same issues. It is proven that all dealers are not created equal and some have a way of screwing the purchaser who just handed over said bag of cash. This site is just another tool in the tool box to better educate us before or while dealing with a dealer.
 
#17 ·
akbiss: Excellent point. I should have clarified. I was basically citing the back and fore posts, which occur about a specific problem. Dealing primarily with a truck that is still in the warranty parameters. They have to be some excellent dealers and qualified techs. You have good/bad characters in any profession. Chrysler, pay dealers to insure that new vehicles are processed and check for serviceability, prior to, or at time of delivery.They should be held accountable. Return to the selling dealer, demand a sound repair or replacement(lemon) The tool box analogy was excellent. Never thought of it in that light. Thanks