Hello All,

I'm a new member and wanted to say hello to all you Vets out there. I'm in the residential construction business, or when there was one, and have been looking at several Ram 2500 (2006) and 3500 (2008) Diesels. I prefer manual, especially with the Cummins engine. Question I have is what mileage should I realistically expect to get from a 2008, 3500 Dually, 4x4, Manual Reg Cab with 3.73 gearing? Excuse my ignorance, but learning about the change from the ever reliable 5.9 to the new 6.7 ***. (I hear the older version one can expect more than 5 miles more per gallon).

All info and advise is much appreciated.

Ted the builder.

 

My dad just went to the 6.7 after having a 5.9 for several years. He said the milage is noticablely worse when towing his 5th wheeler, about 3mpg worse. Is town or mixture of highway and town, not towing, he is getting around 17.

 

I'll move this to the diesel section for more bites.

 

Hey DirtyDog, hopefully I'll get a few more responses. One thing which seems to fly in the face of the EPA, is the drop in mileage for the truck. So what is the gain? Nothing.
One seems to defeat the other.

It would great to see more Biodiesel taking over the market.

 

16 around town--17 on highway at 75-80. Much better economy at 60-65 hwy.

 

I read an article about the emissions DPF reducing the mileage as it reduces the emissions.

The author crunched the numbers. He showed that reducing mileage by 5 mpg, about 20%, causes an increase in fuel usage. That increase in fuel used per miles driven actually negates any emissions gains and causes other negative effects. I really wish I had saved the article. I think it was in one of the diesel mags or maybe even Car & Driver.... wish I had saved it!!

Here is another discussion about mileage including the new emissions stuff.


https://dodgeforum.com/forum/dodge-c...d-mileage.html

 

I agree with you guys. Reducing the emissions on one hand is good, but then sacrificing better fuel doesn't make any sense. Why hasn't the industry pushed for bio-diesel? That seems like a no brainer. Diesel is over $3.10 a gallon here on Long Island. The price of oil shot up today to over $85, and wait until summer when the price goes even further. Thanks for your imput. I think its safer in buying an older truck, then the newer priced diesel models.