Friend bought a new 2011 Ford F350 dually with the 6.7 and stopped in Arkansas to fill up on his way to Illinois. Truck quit after about 30 miles. Had it towed into a Ford dealership, who promptly found gas in the fuel. He pulled out his receipt, had filled up with diesel. Called the gas station and as soon as they heard what the issue was, gave him a phone number to corporate. Seems a tanker driver had dropped a load of gas into the diesel tank and corporate made the call to just fill the tank the rest of the way with diesel rather than pumping it. Apparently the blend was heavier than they thought. They covered the repair bill and offered a motel and dinner, but my friend was towing a camper already set up behind the Ford dealership before the offer was made.
David from jax