Since 1989, RAM (earlier Dodge RAM) has been using engines made by Cummins on their popular pickup trucks. The journey, which started with the first generation 5.9-liter 160 hp turbo diesel ...

The Cummins 5.9's 12-valve architecture was revamped for the second generation in 1994, and a new Bosch injection pump increased the ... doubled the recommended oil change interval to 15,000 ...