Ram EcoDiesel Specs

3.0L EcoDiesel for the Ram 1500 & Jeep Grand Cherokee

Pickup owners and enthusiasts have patiently awaited the arrival of the next era of light duty diesels. Prior to 2007 Chrysler tossed around the idea of offering two different diesel options for its 1/2 ton Ram pickup, both of which were conceptualized by Cummins, the same company whose legendary reputation has helped sell Ram 3/4 and 1 ton pickups since 1989. 2014 marked the end of the wait for prospective Ram 1500 diesel buyers, but with a bit of a plot twist; Cummins is not involved in Ram Truck's latest diesel endeavor. Rather, Italian engine manufacturer VM Motori is producing the engines, a company whom Chrysler has had a long standing partnership with in its European operations since the 90's; Fiat-Chrysler fully acquired VM in 2013.

EcoDiesel Balances Power, Capability, & Fuel Economy

Chrysler aptly named the engine the "EcoDiesel". With a mere three liters of displacement, the V-6 registers 240 horsepower and 420 lb-ft of torque; that's more torque than the optional 5.7L Hemi, though the Hemi has much more horsepower to tap into. Ram's EcoDiesel does not carry the 1500's highest towing or payload ratings, but with the ability to tow up to 9,200 lbs and haul up to 1,620 lbs (based on 2014 ratings), the EcoDiesel is plenty capable for the average pickup owner. Even more impressive are the engine's EPA certified fuel economy ratings. Upon its introduction, two wheel drive models were rated up to 28 mpg on the highway while four wheel drive models received a slightly lower 27 mpg highway rating by the EPA. The introduction of the "HFE" EcoDiesel for 2016 saw maximum fuel economy rise to 29 and 28 mpg on the highway for two and four wheel drive trucks respectively.

The engine is B20 compatible and thanks to its highly advanced equipment, it's a relatively low emissions vehicle. A diesel oxidation catalyst snuffs out CO2 emissions while a diesel particulate filter captures particulates and the selective catalytic reduction system uses diesel exhaust fluid to limit nitrous oxide emissions. An industry first, the diesel exhaust fluid tank level, which has an 8 gallon capacity, is relayed to the drive in real time via an in-dash gauge.

The EcoDiesel is available in Ram 1500 Quad Cab and Crew Cab models (not available in a single cab configuration). The same engine is also available in the Jeep Grand Cherokee, where it achieves up to 30 mpg on the highway. Ram currently mates the EcoDiesel to the ZF engineered 'TorqueFlite 8' eight speed automatic transmission. The EcoDiesel has an electronically limited 4,800 rpm max engine speed, though wide-open up-shifts occur close to 4,000 rpm. Engine's are currently being manufactured in Cento, Italy.

3.0L EcoDiesel V-6 Specs


60° V-6


3.0 liters, 182 cubic inches

Bore x Stroke:

3.27" x 3.60"

Cylinder Head Material:


Engine Block Material:

Compacted graphite iron (CGI)

Firing Order:


Compression Ratio:

16.5 : 1


High pressure common rail.


Water cooled Garrett 2056 variable geometry turbocharger, air-to-air intercooler


24 valve (4 valves per cylinder), roller chain dual overhead camshafts (DOHC)


Approximately 507 lbs

Oil Capacity:

10 1/2 quarts (with filter)

Governed Speed:

4,800 rpm (WOT up-shifts @ ~4,000 rpm)


240 hp @ 3,600 rpm


420 lb-ft @ 2,000 rpm

Fuel Economy (Ram 1500):


20 city, 28 highway mpg (intro, 2014 MY)
21 city, 29 highway mpg (HFE, 2016 MY)


19 city, 27 highway mpg (intro, 2014 MY)
20 city, 28 highway mpg (HFE, 2016 MY)


Diesel oxidation catalyst (DOC), diesel particulate filter (DPF), exhaust gas recirculation (EGR), selective catalytic reduction (SCR, requires the use of diesel exhaust fluid).

Engine Dimensions: