I traded in my '05 Chevy 2500 on my '01 F-350, The 7.3 gets nearly twice the mileage as that thing did(19 instead of 11-12), I wont own a small block anything again, I truly enjoy idling away from stoplight while the vehicles around me are hammering their underpowered garbage to get around me (it rarely happens before i let off to avoid tickets).