A lawsuit claims that Cummins and Ram misrepresented the performance of Heavy Duty trucks with diesel defeat devices.

The famous ram hood ornament appeared on Dodge trucks in 1933, and by the late '40s, four-wheel drive and diesel engines had been added to the list of functional features. Dodge began using the ...

It began in 1989 when Cummins started supplying its B-series engines to Dodge for use in three-quarter-ton (Ram 250 ... three-quarter ton or larger diesel pickup truck at the time.

These earliest Dodge Rams were lightly restyled versions of a different truck Dodge introduced in 1972. A modest 1986 face-lift for the Ram added its ... A new turbo-diesel V-6 was offered for ...