However, the Ram HD is taking a different approach by eliminating gas-powered engines to bet it all on a more powerful ...

From a 6.4L gas V8 to a high-output diesel pulling 19,000 lbs., the 2025 Ram HD trucks tested their power and control on the Davis Dam Grade in real-world conditions.

Though compact diesel vehicles never caught on in the United States, this technology is still plentiful in the domestic heavy-duty truck market—and for good reason. This section ...

Every truck in the Ram Heavy Duty lineup can now be optioned with the Cummins 6.7-liter inline-six High-Output Turbo Diesel engine ... HD eight-speed automatic transmission is now controlled ...

Recently updated for 2025, the Cummins 6.7L turbo diesel engine is primarily designed for heavy-duty pickup trucks. It is the most popular (and powerful) engine option on Ram trucks. The 2025 ...

However, the Rebel HD’s suspension remains punishing. Unlike the Silverado HD ZR2 and Ford Super Duty Tremor, the 2025 Ram 2500 Power Wagon cannot be optioned with a turbodiesel engine.

The new Ram HD lineup made towing equipment and a fifth-wheel camper over the Davis Dam grade, the industry's official SAE testing site, seem too easy. The 6.7L high-output turbo diesel engine is ...

some buyers might miss the Hemi V-8, plushest versions are weighed down by massive price tags. VERDICT The 2025 Ram 1500 is a truck that exists at the intersection of elbow grease and indulgence.