Written by Allen Schaeffer, executive director of the Diesel Technology Forum. This is one in a series of periodic guest columns by industry thought leaders.
Ask the average person on the street what comes to mind when you say the word “diesel.” The majority will respond “truck.” Will it still be that way 10, 20 or even 50 years from now? Yes.
Some are predicting a rise in the use of natural gas engines and even electric motors. Tesla Motors last week said it was moving into the market with an electric semi-truck.
But diesel engines are the overwhelming powertrain of choice for the commercial trucking industry. Because of their transformation to clean diesel technology, gains in efficiency and use of renewable diesel fuels, they will be the dominant player in the future of trucking.
With a fuel that has a 10-percent higher energy density and 20- to 30-percent efficiency advantage over a gasoline engine, more freight and work can be done using a gallon of diesel fuel than other alternatives.