When the 2020 Ram 1500 EcoDiesel goes on sale later this year it'll be the most expensive optional engine available in a light-duty truck. On Friday, Ram said the 3.0-liter V-6 EcoDiesel engine option in the 2020 Ram 1500 will command a $4,995 premium over the base V-6 mild-hybrid or a $3,000 premium over the 5.7-liter Hemi V-8 mild-hybrid. That's...
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