The Detroit Diesel Corporation was the brains behind the six-cylinder DD15, and while the price tag for producing the engine might seem high, the results speak for themselves — which isn't a ...

Check out this 1.5 Billion Dollar engine featuring the Detroit Diesel DD15 with 1,850 lb-ft at 1,100 rpm torque inside Diesel Power Magazine.

REDFORD, Mich. — Detroit Diesel has unveiled its new heavy-duty engine, the DD15, which the company says will offer improved performance and fuel mileage along with a quieter ride.