It is easier to hit emissions standards with gas engines. With diesel prices remaining 50c per gallon or more above the price ...

The pickup has featured a Cummins diesel engine since the original 160-hp, 5.9L Cummins B-series turbo diesel powered it back in 1989 and continues to do so today in the form of the current 6.7L ...

Cummins produced the 5.9L 12-valve 6BT turbodiesel inline-six ... Dodge previously used a naturally aspirated 4.0-liter ...

For years, Cummins fans have wondered what a gasoline version of the legendary 6BT would look like. The original 5.9-liter I6 ...