2020 Ram 1500 EcoDiesel MPG: How It Compares to Chevrolet, GMC, Ford Diesels

2020 Ram 1500 EcoDiesel 3.0-Liter Engine

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By Brian Normile

We've been waiting for EPA fuel economy numbers since we drove the 2020 Ram 1500 EcoDiesel in August, and now they're here. In 4x2 configuration, the Ram is rated at 22/32/26 mpg city/highway/combined and 21/29/24 mpg as a 4x4. That puts the 4x2 Ram's best 26 mpg combined rating below the 2020 Chevrolet Silverado 1500 Duramax 4x2's 27 mpg combined (23/33 mpg city/highway) and equals the 2020 GMC Sierra 1500 Duramax 4x2's 26 mpg combined (23/30 mpg city/highway). The two GM trucks have different fuel economy ratings thanks to different weights and aerodynamic profiles. Ford's baby Power Stroke F-150 diesel lags behind the field at 25 mpg combined (22/30 mpg city/highway) as a 4x2. The new EcoDiesel's numbers also represent an increase for both 4x2 and 4x4 trucks over the previous-generation EcoDiesel, which the EPA rated at 21/29/24 mpg for the high-fuel-economy 4x2 and 19/26/22 mpg as a 4x4.

Related: 2020 Ram 1500 EcoDiesel First Drive: Refined, Strong ... and Efficient?

Ram calls the 4x4 EcoDiesel's highway fuel economy of 29 mpg "unsurpassed," and that's true. It's just not higher than all of its competitors: As 4x4s, Chevy comes in at 23/29/25 mpg city/highway/combined, GMC at 22/26/24 mpg and Ford at 20/25/22 mpg. According to Ram's statistics, more than 80 percent of full-size trucks sold in the U.S. are 4x4s, so while the 4x2 fuel economy may get the headlines, these are the figures buyers are most likely to see.

Thanks to an available 33-gallon fuel tank, the Ram 1500 EcoDiesel boasts more than 1,000 miles of range — assuming almost 100 percent highway driving, of course. And its maximum towing capacity is 12,560 pounds depending on configuration.

The 260-horsepower, 3.0-liter EcoDiesel V-6 making 480 pounds-feet of torque will be available on all trim levels of the 2020 Ram 1500 as a $4,995 option. The lowest-cost version is priced from $38,585, including a $1,695 destination fee. EcoDiesel-powered 2020 Ram 1500s will be available in the fourth quarter of 2019.

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