For the 2015 lineup, Dodge Ram 1500's gas mileage varies from 22 to 29 miles per gallon highway. The trucks typically get seven or eight miles less per gallon when driven in cities.
There are 3 different Dodge Ram engines in the 1500 class for 2015. The most fuel efficient of the 3 is the 3.0L ECODIESEL V6 ENGINE, which gets 21 city MPG and 29 highway MPG. On the less efficient end is the 5.7 HEMI® V8 ENGINE WITH FUEL SAVER TECHNOLOGY, with 15 city MPG and 22 highway MPG. The middle option is the 3.6L Pentastar® V6 Engine, which gets 18 city MPG and 25 highway MPH and has been placed in Ward's 10 Best Engines for three consecutive years.