Flying J and Pilot moving toward B20 diesel?

You get a double hit when using the B20. As mentioned, you're paying for a less expensive fuel that the dealer sells at the more expensive price, and then you get the second hit where your fuel mileage drops because there's less BTU's (energy) in a gallon of B20 than in a gallon of straight #2 diesel. 139,000BTU in #2 diesel vs 126,700BTU in a B20 diesel. Welcome to the "how do we screw the consumer again?" game.