What engine type powers the HMMWV?

The HMMWV, commonly known as the Humvee, is powered by a 6.5-liter V8 diesel engine, which is significant for several reasons.

First, the choice of a diesel engine provides higher torque compared to gasoline engines of similar size, which is particularly beneficial in a military context where the vehicle often operates under challenging conditions and may need to carry heavy loads. The diesel configuration also enhances fuel efficiency, allowing for extended operational range and reduced logistic burdens.

Moreover, the 6.5-liter V8 engine has been specifically designed to run reliably in various environments, from hot deserts to cold climates, making it a versatile option for military deployments. Diesel engines are also known for their durability and longevity under rigorous use, which is essential for tactical vehicles that face wear and tear.

This engine type also supports the vehicle's overall design priorities, including maintaining a balance between mobility, payload capacity, and reliability, all of which are crucial for the capabilities expected from the HMMWV in various scenarios.