I purchased new a 2008 Dodge Ram 3500 SRW CC Laramie 4x4 CTD after repeatedly hearing how Dodge trucks with the CTD got great fuel mileage and should last several hundred thousand miles. The truck cost several thousand dollars more for the CTD engine 6.7. I haul a NL 8'5 and pull a drift boat to the Rockies each year. This truck's exhaust system used a diesel particulate filter and was supposed to "regenerate" itself to cleanse soot from the system. I left for 4 months fishing in the Rockies and Alaska in late May of this year. The first night out the truck died in Louisville, KY. After it was towed to a Dodge/Chrysler dealership it was determined the diesel particulate filter needed to be replaced. If that didn't solve the problem the turbo would have to be replaced. The truck had 3 weeks left on the warranty and 71,000 miles. The price to replace the DPF was $1800 and to replace the turbo was $7000. If I had to pay that out of pocket rather than warranty I would have had to return home.
It took 4 days to repair the truck. The dealer had to order both the DPF and the turbo. I asked them to order both parts the morning my truck arrived at the dealer's but was told Chrysler would not let them order the turbo until replacing the DPF didn't solve the problem. They ordered the DPF, replaced it when it arrived the next day and it didn't solve the problem. Chrysler would not let them order the new turbo until they tried cleaning the old turbo. They sheared a bolt trying to remove the turbo and ended up having to replace it anyway. I suggested to them Chrysler's protocol for repairing the problem was not user friendly as I could have been on my way the second day if they had ordered both parts the first morning. They also initially said they were going to charge me for the cleaning of the turbo, something not in the standard maintenance protocols.
If you search the net for DPF problems and Dodge trucks it will soon be evident to you that Chrysler/Dodge has been aware for some time there is a problem with this generation of engine/exhaust. A class action lawsuit has been filed by dissatisfied owners of this generation of engine/exhaust. I am not a plaintiff in this suit or an attorney. For the price I paid for this truck, I feel Chrysler should have been proactive in notifying owners of the potential problem and they should have come up with a fix to the problem and recalled it. Evidently there is an after market fix in which shops (not Chrysler/Dodge dealerships) remove the exhaust and place chips in the computer telling the engine's computer to ignore certain messages it receives because the exhaust has been modified. This results in improved fuel mileage and eliminates the DPF problem. However, if you have this modification performed it voids the engine's warranty. I never got more than 14 mpg diesel which is significantly less that the previous generation of CTD. The service manager told me the after market fix improves fuel mileage and engine efficiency.
I planned on driving to Alaska then to Deadhorse via the Haul road and also frequent isolated roads near trout streams. I decided I was going to get a new truck rather than take a chance on being stranded again in the Dodge that might cost me $8800 to repair. The Dodge dealership would not give me what I was offered by the GMC dealership in Louisville for my 2008 Ram CTD. I ended up with a GMC 2500 4X4 extended cab gasser SLT. It has more cargo capacity than the Ram did.
I drove the GMC 18,500 miles to AK and back to NC. I got 11 mpg with the gasser as opposed to the 14 I was getting with the Dodge CTD. On 2 grades (1 in Colorado and 1 in Wyoming) I could tell the gasser did not have the power the CTD had. However, the GMC hauled my rig great otherwise, including all over Montana, Washington, Utah, and
Idaho. It also does great in the mountain of NC and Tenn. I do miss the exhaust brake the diesel had. Unless I needed the power of a diesel to haul my rig, I don't think I could justify paying the additional price for the diesel engine and the extra amount per gallon diesel costs in NC (it's usually 50 to 70 cents higher than regular unleaded).
Good luck with your decision and I hope you have many years of fine travel in your new rig.