thats on a good day. Loaded heavy and alot of hills and it can be as bad as 4mpg. Thats why we have 200-400 gallon tanks, if not we would have to stop every 200 miles to fill back up. Always remember, if you got it, a truck brought it. Everything somewhere along the line had a truck involved . I hear people complain about using trains more, well if CSX needs something in say Nashville within 12 hrs, they hire a truck. freight shipping to Baltimore on rail takes an average of 1-2 weeks, I was told that by a friend who is an engineer with CSX. Trains can't back into docks either.