Gas engines don't work very well for the really heavy loads and constant usage. Additionally, modern turbo diesels are pretty darn good with fuel mileage compar

Gas engines don't work very well for the really heavy loads and constant usage. Additionally, modern turbo diesels are pretty darn good with fuel mileage compared to gas powered vehicles. I have a newer turbo diesel mid sized truck, and on the highway I get anywhere from 30-33 MPG, and 28-30 MPG around town.