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Old 02-03-2011, 05:33 AM   #1 (permalink)
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Exclamation Pros and Cons of the beloved Cummins

Fellow Diesel Lovers,

As the Dodge truck and Cummins engines in have evolved, the EPA having their hands in the mix, and customer demands influenced the way they were made, what are the reasons why you love the this combo?

Was the 5.9 better? Or is the 6.7 better? Why?

If you were trying to explain it to someone who knows nothing of a Dodge truck or Cummins for that matter, how would you go about doing it?

Which mods do you feel are "mandatory" for each engine? As enthusiasts, just about everyone on the forums have modded their trucks in some way. Give a few reasons as to why you did that to your truck?

I am just trying to get a historical account as to why there is such a following to this truck and its engine. I know hardcore guys from each of the big 3 camps and they wouldn't drive another truck. The Dodge is no different. But the Cummins owners I have seen are a bit different. There is a following for the "engine". That in itself is different that most other brand loyalties. I do not see it in the Chevrolet or Ford camps. I believe they are more in love with the Allison trannys more so then the Duramax. Ford...I don't know why anyone drives one other than brand loyalty. So what is it? Why do you love the Dodge/Cummins combo?
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Old 02-03-2011, 07:16 AM   #2 (permalink)
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My main reason is that its easy to work on compRed to the other two. You can actually work on it without having to remove 10 other things just to get to the part you're replacing. The other two engines look like they were designed by the Germans. For those that don't know, German cars are the worst to work on, there no room and they are far more complicated than they should be.
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Old 02-03-2011, 08:38 AM   #3 (permalink)
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Good point. You almost have to have an engineering degree to pop the hood on my VW TDI. They are more sensitive to the mods that you guys (Cummins modders) do on a daily basis.
Ford still trying to recover from the 6.0, intro'd the 6.4 and while it is a better engine all the way around, it (the 6.0s history) still stings. Now, the Chevy has had a great run with the Duramax. I still do not think it is as proven as the Cummins, but it is over 10yrs old now and proved to be a huge step in the right direction for Chevy.

Thanks for the feed back. Keep it coming guys.
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Old 02-03-2011, 08:51 AM   #4 (permalink)
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One of the main reasons is this is a straight in-line 6 cylinder engine design. Less moving parts to break with this style of engine. It is also develops it torque at a lower engine RPM then a "8" Cylinder engine will.
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Old 02-03-2011, 08:52 AM   #5 (permalink)
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Jim, do you believe the change from the much loved 5.9 to the 6.7 was in the right direction? If so, why?
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Old 02-03-2011, 08:59 AM   #6 (permalink)
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I do... the EPA put big restrictions on diesels... the added displacement made up for the restrictions. And the 6.7 injectors are much more reliable than the 5.9's

If you want to sell vehicles in the states, you have to bow to the EPA
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Old 02-03-2011, 09:06 AM   #7 (permalink)
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So you are saying that pre-EPA 07.5 cummins are better? What is the perks to having that engine to the newer 6.7?
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Old 02-03-2011, 09:13 AM   #8 (permalink)
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Originally Posted by willjames007 View Post
Jim, do you believe the change from the much loved 5.9 to the 6.7 was in the right direction? If so, why?
Turn it up so you can choke it down. Doesn't make alot of sense. But with the restictions placed on the manufactures, what do ya do.

Added cost to the consumer, and in a lot of cases, added head aches as well.
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Old 02-03-2011, 09:14 AM   #9 (permalink)
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less EPA BS, don't have to spend as much money to get decent mileage out of them...

beyond that, the 6.7 is a better engine than the CR 5.9 IMO
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Old 02-03-2011, 09:17 AM   #10 (permalink)
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Correct me if I am wrong, but there was a short run of 3500s that had the 6.7 without the DPF in the 07.5 time frame? So is this the best of both worlds?
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Old 02-03-2011, 09:25 AM   #11 (permalink)
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Correct me if I am wrong, but there was a short run of 3500s that had the 6.7 without the DPF in the 07.5 time frame? So is this the best of both worlds?
Not that I am aware of?

But I'm sure there are a few without it now.
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Old 02-04-2011, 01:38 AM   #12 (permalink)
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Thanks. I have just been reading and there is a guy stating his is for sale and this is the excerpt from his listing..."This is a fantastic truck, very hard to find these, especially for what we're offering it for. This is a totally loaded pre 08 emissions Cummins 6.7 Mega Cab Laramie 1 Ton. (NO DPF!)"
Just wondering if I misunderstood or he is mis-informed.
Thanks for the feedback and keep it coming!
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