And you can't tow with them without killing the mileage. I'm looking forward to the day that smaller diesel trucks are available in the U.S. The better torque from the diesel and increased overall performance from turbo makes them an excellent overall choice. In addition, bio-diesel fuels are a great option as an interim alternative to gas while the world comes up with something even better. I've burned bio-diesel in my truck and felt no noticable change in performance and it even smells a little better.