2019 Ram 2500-5500 new rear fuel/water separator.

New 2020 Ram 1500 with 3.0L diesel get an new updated oil filter.

Ram announced Tuesday that its 2021 1500 Tradesman HFE EcoDiesel trim goes toe-to-toe (tow-to-tow?) with the segment's most efficient diesels, offering 23 mpg in the city, 33 mpg on the highway and 26 mpg combined. That's good enough for a first-place tie in the segment, as those numbers now match those of Chevy's Silverado 1500 with the 3.0-liter Duramax oil-burner.