I wrote a book on this exact matter long before the Fuel prices went throw the roof. and it was published Just before it climbed to 4 and 5 dollars per gallon.I wish people and washington would read this book to have some sort of clue what we truck driver have to deal with day to day to bring them thier products. and if the knew how the diesel Fuel was affecting thier jobs and life styles they wouldn't tax us as heavy as they do and traffic might cut us a break..yea i know thats a dream..lol if your interested the books title is "And the Trucks Quit Running" www.barnesandnoble.com Thanks Earl Conlon