The final results won’t be known until the end of the year, but participants in the Department of Energy’s SuperTruck II program are racking up serious efficiency gains aimed at diesels that could ultimately help electric trucks go farther on a single charge.
The goals of SuperTruck II are 55% brake thermal efficiency (BTE) improvement for heavy-duty diesel engines and double the freight efficiency, as measured in miles per gallon multiplied by the freight tons carried.
Daimler Truck North...