Fiat Chrysler Automobiles (FCA) introduced the 3.0-liter EcoDiesel engine in 2011, offering it to the European market. In North America, the automaker provided the L630 DOHC version in 2014 for the Ram 1500 and Jeep Grand Cherokee.
VM Motori, a subsidiary of Fiat Chrysler in Cento, Italy, built the 3.0-liter EcoDiesel with a graphite iron (CGI) engine block making it more compact, stronger, and lighter than an engine using a cast iron block. For additional strength, FCA bolted a bedplate to the engine block, and inside installed an upgraded crankshaft made of forged 4140 steel. The manufacturer also installed high-strength cast iron connecting rods, and lightweight cast aluminum pistons for durability. The six-cylinder engine boasts aluminum DOHC heads with four valves per cylinder, and low-voltage ceramic glow plugs give the engine quick starts and reduced emissions.
The 3.0-liter EcoDiesel engine features a high-pressure direct injection fuel system known as MultiJet II, and it employs a water-cooled Garrett variable geometry turbocharger (VGT). Like most modern diesel engines, the EcoDiesel is also fitted with a variety of emission reduction equipment, such as a Diesel Oxidation Catalyst (DOC) and a Diesel Particulate Filter (DPF). From 2014 to 2019, the 3.0L EcoDiesel produced up to 240 hp and 420 lb-ft torque. In 2020, FCA boasted added power of 20 hp and 60 lb-ft torqu
The performance, durability, and reliability of the 3.0-liter EcoDiesel engine earned it Ward's "Ten Best Engines" for three consecutive years in 2014, 2015, and 2016. The engine's success inspired Ford to introduce the 3.0-liter V6 Power Stroke engine and GM the 3.0-liter I6 Duramax engine