The boys in Detroit have been thinking about building a light duty Diesel for years, RAM is the first to act on what should be a homerun...
Bob Lee, Chrysler vice president and head of engine and electrified propulsion engineering:
“it virtually cost us nothing to slot the engine into the Ram, because all the engineering had been done and paid for in Italy."
so already the move is pure profit, The 3.0L RAM EcoDiesel was developed and manufactured by VM Motori, which is now owned 100% by Fiat. Keeping with the efficiency theme the 3.0 EcoDiesel will come standard with Chrysler’s new 8-speed automatic transmission
, to boost fuel economy and make shifts smoother.
If the RAM EcoDiesel can pull down mpgs in the 23-25 range
it will be a smashing success, especially in a vehicle capable of lugging 7,450 lbs
The VM Motori engine is actually packed with technology, this is not your fathers Diesel. Chrysler is using conventional solenoid injectors but Motori has managed to enable up to eight injections per combustion per cylinder. Using multiple injections at extremely high pressure rather than a single shot of fuel from the old days reduces the tractor clatter associated with diesels of the past.
RAM will also be using auto glow plugs
. Under cold start up the glow plugs will retard starter action and preheat the block for a few seconds before roaring to life. Chrysler says the ceramic glow plugs used in the RAM EcoDiesel heat up faster and have a higher temperature capacity
Providing the boost is a single variable geometry turbocharger that is electronically actuated, the housing is water-cooled. Urea tank needs to be refilled every 10,000 miles (16,093 km)
. The engine routes cooled exhaust-gas back into intake to reduce oxides of nitrogen emissions, RAM also makes use of standard Diesel technology like a diesel oxidation catalyst and diesel particulate filter.
Lastly, gasoline engines have gotten so much cleaner and fuel-efficient that the long held 25% advantage in diesels favor has dwindled now to about 15% efficiency gain over petrol