The 6.7-liter Cummins diesel has been powering Ram trucks for nearly two decades. One common problem is hydraulic lifter failure, but what years does it affect?

That, the unchanged 6.2-liter base V8 and the 6.7-liter Power Stroke turbodiesel V8 are all connected to the Ford-GM 10-speed automatic gearbox.

Ford just announced a brand-new V8 for the F-250 and F-350 Super Duty truck lines—and at 7.3 liters, this pushrod V8 is the largest displacement engine available in any new pickup truck today.