Join Date: Feb 2012
Location: North Georgia
Thanked 66 Times in 43 Posts
iTrader Score: 0 reviews
I cannot speak for the 2019 Standard Output MPG Ratings. However, the fuel efficiency ratings so far on my 2019 3500 Mega SRW HO/Aisin are 16.6 MPG overall @ 5200 miles (varied usage via the lie-o-meter), & 19.1 MPG on last weeks approx. 1800 mile all highway trip. That trip was running 75-80 average with light cargo in the bed (hand calculated average between 4 fuel stops). Those numbers are slightly less than than my previous 2015 2500 Mega under the same conditions. DEF usage does seem higher on the 2019 vs. my 2015, but I cannot be certain since I only topped off the DEF tank at my last fuel stop. I had used just the 2.5 gallon DEF jugs before. It seems that around town and towing that the HO in my 2019 does use slightly more fuel than my 2015, but it absolutely has more power and faster boost spool-up as well. On the highway, I think that most of the slight loss I see in MPG between my 2015 & 2019 are due to the Gear Ratio change (2019 3:73 vs 2015 3:42) and not the motor. Maybe someone that has had the same truck/gears between year models can provide a better analysis. I can say that it that every CTD I've owned seems to get slightly better MPG after its had some miles put on it, compared to when they are brand new. I guess time will tell.
2019 Ram 3500 SRW Laramie Mega 4x4 HO/Aisin Blue Streak/Silver, 2015 Ram 2500 Mega, 2013 3500 Mega,
2011 Ram 3500 Mega G56, 2006 Ram 2500, 2003 Ram 3500, 1999 Ram 2500.