mpg on 2015 ram 2500 diesel cummins?

Just did a loop of 500 miles in our new 2015 truck (see signature).

It had a varied mix of city and highway as well as three mountain passes. Highway speeds were between 70-80.

Averaged 21.5. Truck has under 1000 miles so far so I'm very pleased.

When the new Arctic Fox finally arrives we'll see what loaded numbers look like.

Aside from pure curiosity I couldn't care less about my mileage. Gas mileage and big trucks really don't belong in the same sentence IMO.

Bionic Man wrote:
There are a number of posters on this site that have a vendetta against Chrysler for one reason or another. You already found one of those in your first response.

2500 trucks to do not test (or at least they don't publish tests) for MPG, so you won't find anything from the EPA on any of the brands. The test that was linked is probably about as good as you will find, although it has it's limitations (was driven at 65 MPH, which no one in my area drives).

My personal opinion is that there are a lot of reasons to buy one brand over another. MPG really isn't a defining factor in the HD diesels.

X3

I have no problem getting 20 to 21 at 65 MPH not towing . Towing a twenty foot TT at 65 mph I get 14 and 15 MPH . The biggest deterrent to good mileage is speed , not manufacturer !

Glacier D wrote:

travelnutz wrote:
All tests and independent comparison test results stated in black and white repeatedly that the Cummins 6.7 is the thirstiest of the 3 pickup truck diesels by far. A good reason why the MPGs are not given/written much for the buying public to see.

That was true prior to the use of DEF in the Cummins engine. Too many regens caused lower fuel mileage in pre-2013 Rams. Latest test I saw on Pickuptrucks.com the Ram Cummins did respectfully well.

X2

travelnutz wrote:
All tests and independent comparison test results stated in black and white repeatedly that the Cummins 6.7 is the thirstiest of the 3 pickup truck diesels by far. A good reason why the MPGs are not given/written much for the buying public to see.

That was true prior to the use of DEF in the Cummins engine. Too many regens caused lower fuel mileage in pre-2013 Rams. Latest test I saw on Pickuptrucks.com the Ram Cummins did respectfully well.

Bionic Man wrote:
There are a number of posters on this site that have a vendetta against Chrysler for one reason or another. You already found one of those in your first response.

2500 trucks to do not test (or at least they don't publish tests) for MPG, so you won't find anything from the EPA on any of the brands. The test that was linked is probably about as good as you will find, although it has it's limitations (was driven at 65 MPH, which no one in my area drives).

My personal opinion is that there are a lot of reasons to buy one brand over another. MPG really isn't a defining factor in the HD diesels.

X2

On my 15 3500 CC SB 4x4 Aisin, I'll get 17-18 as a daily driver with mixed driving and 21-22 on the freeway if I keep it around 70.
1 trip of 300 mi towing 21 TH, I got around 10.5 mpg.
I drive pretty easy though.
Not bad for a a 7k lb truck with twice the torque and better mileage than my old Hemi.

OP, if you want to sample a large cross section of owner experiences, have you checked Fuelly.com? Looks like the curve is normalizing on 17 or 18 mpg for that truck in 2014, and 18 mpg is the biggest return for 2015.

How much usually is the miles per gallon on 2015 ram 2500 diesel cummins? 2wd or 4wd

Can't find the mpg on the internet.

Didn't you receive a lot of good information re this question on your other post comparing the Tundra to the Ram/Cummins 3500?

I have a 2014 2500 Laramie CC 4x4, stock except for a Ranch Hand bumper, tool box and headache rack that has almost 13,000 miles on it. In city traffic with too much idling it gets 15. Fast highway driving (75 to 80 or so) yields 18. I did one highway trip and left the cruise at 65 and it broke 21 for almost 200 miles. With our 10,000 pound extra tall travel trailer it will do 10 to 12 depending on headwind or not and how late we are (wife, two kids, and two dogs, so we are always late leaving). Overall (without the heavy towing) it gets a little better than my old 2005 1500 GMC Sierra CC in mpg, but cost per mile is a tiny bit more because of the price of diesel. I have been very satisfied with the mileage, especially considering the Ram with the addons weighs at least 3000 pounds more than the Sierra did.