Last Month, AUTOinCAR says (in 2011 Ford F-Series Super Duty Heavy Truck) A new 6.2-liter V-8 gasoline engine also is added to the lineup; it also delivers significantly improved torque and horsepower as well as class-leading fuel economy; new gas engine can run on regular-grade gasoline, E85 or any blend in between

And Consumer Reports Cars says (in Preview: 2011 Ford Super Duty pickup) The Super Duty line also uses a new wide-ratio six-speed automatic transmission, mated to either engine. Ford claims this gives the diesel best-in-class fuel economy, but when we tested a 2008 version, we found it got only 10 mpg overall, the worst of three diesel-powered ¾-ton domestic...

2 Months Ago, Marc Carter from The Torque Report says (in 2011 Ford Super Duty Unveiled in Texas) A new 6.2-liter V-8 gasoline engine also is added to the lineup; it also delivers significantly improved torque and horsepower as well as class-leading fuel economy; new gas engine can run on regular-grade gasoline, E85 or any blend in between

And Ray Wert from Jalopnik says (in Opinion: 2011 Ford Super Duty: The New Power-Stroking Pickup) 2011 Ford Super Duty

New diesel and gasoline engines deliver improved torque, horsepower, fuel economy

New gasoline engine delivers more torque, horsepower than outgoing model

Benefits of the new 6.2-liter V-8 gasoline engine include:

3 Months Ago, Mike Millikin from Green Car Congress says (in Ford Unveils New 6.7-L Power Stroke V-8 Turbocharged Diesel) Then when the main injection occurs, we can mitigate NVH because we have a slower ignition process. When the fuel burns, it doesn't burn with a traditional pop or bang. The direct-injection system is calibrated and phased for optimum power, fuel efficiency and NVH.