The Ram Power Wagon is the automaker’s heftiest version of its heavy-duty pickup truck, but with one huge caveat: there is no diesel engine available. According to a Ram powertrain engineer ...

For a brand so interminably linked to the Cummins diesel engine, Ram only offers its rock-crawling Power Wagon pickup with a gas-fired Hemi V8. It seems that the 2500-based Power Wagon's off-road ...

Ford and GM's heavy-duty off-road-ready pickup trucks all offer diesel engines, but that's not the case for the Ram Power Wagon. Its sole engine option is a gas-powered 6.4-liter V-8, which is ...