WardsAuto logo
Internal Combustion EnginesFueling OptimismFueling Optimism
A funny thing is happening in the race to find a fuel-efficiency solution for North America: One of the world's oldest engines is in position to become the front-runner. Hydrogen may indeed be the ultimate fuel of the future, and hybrid-electric vehicles and ethanol grab headlines. But in the next 10 years, the diesel engine promises to be by far the most rapidly adopted alternative powertrain. Driving