I had an ‘01 dodge 3500 dually that was chipped and had ALL the after market stuff in it. I did get 16-17 mph while loaded, 3-4 horses in a Trails West trailer. Going to Denver empty I got 28-30 mpg. I sold it a month ago and bought a ‘12 3500 with 25,000 miles on it. Worst decision ever. That thing is gutless. 

I love my 2014 3500 RAM dually. Gets about 12 mpg hauling a trailer, not great not bad. But dang it pulls with ease! Can barely feel anything back there, even when really loaded down. 

Those with 2018 or 2019s, what is your opinion on the two different transmissions? 

I have a 2016 1-ton Cummins. Before that we had a 2014. The 2014 actually had more power hauling up a hill with a fully loaded trailer, but it had 410 gears in the back. Our 2016 has the Aisin, with 373 gears. Hauls better, but I have to floor it up steep grades to keep it from down shifting too soon. 

Wish we got better mileage than we did. We get ten hauling a 4-Star four horse with 12 ft LQS and maybe 15 when we aren’t hauling. I think you have to let go of the whole six speed idea if you want more power. The newer trucks really are better as an automatic. You have no delay in shifting with the autos.

Here’s hoping the Aisin is what they say it is though.

Earlier this year I bought a 2018 Ram 2500 with 6.7 cummins engine. I prefer a long bed, so that’s what I got. According to the fuel economy display, I am averaging 20-22 MPG for my daily commute on the freeway and between 10-14 MPG with a fully loaded 4 horse trailer.

I think the displays are wrong, a lot.  Have you ever calculated what you are actually getting when you fuel up? Also, the miles can be incorrect based on your tire size too.  When I bought my 2005 GMC, it had smaller tires on it, better mileage using actual calculations.  Once I put bigger tires on, decreased mileage.  But the actual miles can be distorted if everything is not completely reset by a dealer with tire size too.  My two cents.

They are not wrong a lot. 


They are wrong, always

every time

In totality they are wrong. 

Completly 

I just bought a 2018 3500 a few weeks ago move only hauled an empty trailer with it so far and it tows it like a dream. Has an airbag system to raise and lower bed. Tow camera to make hooking up easy. I went with the heavy duty AISN transmission. Searched all over the US for a 2018 with it in it. This is my first new vehicle. My 02 F350 with the 7.3/was in the shop for two months and I broke down. Traded in my Yukon and the dually is now the family vehicle. It is a Cadillac of trucks. Does everything and more than I could want. My F350 now seems basic compared to this truck with all the bells and whistles. Now my other truck is out of the shop and will be the farm/hay/cow truck