Dubbed the Powerful, the experimental engine is a 730cc, two-stroke, two-cylinder supercharged and turbocharged diesel that makes between 47 and 67 horsepower and 83 to 107 pound-feet of torque.

Many seasoned truckers prefer two-stroke Detroit Diesel engines because Series 53 and 71 engines were common in large trucks in the 1960s and 1970s, have a widespread service network, are reliable ...