Ford F-250 through F-550 Super Duty Trucks deliver heavy hauling naturally with optional 6.4L Power Stroke® V8 Turbo Diesel engine. It's the most powerful Ford pickup diesel engine ever built. High-pressure common-rail fuel injection helps deliver 100 percent of its 650 lb.-ft. of torque at just 2,000 rpm. It also optimizes cold-start capability and helps make this Power Stroke the quietest Ford truck diesel yet. Innovative technologies also help reduce particulate emissions to meet stringent federal standards. The F-650 and F-750 Super Duty Ford trucks deliver true Super Duty® capability. With rails and crossmembers that form a ladder frame for strength; a suspension that handles the heaviest loads, and braking that’s solid and predictable, the chassis is optimized to deliver all-out capability with the quiet ride, stable handling and performance you’ve come to expect from Ford Super Duty® pickups.