 When you run a fleet business, delay is a dirty word. What fuels me to stay on schedule? My clients, their clients, and everyone's bottom line. What fuels my fleet? Cenex Roadmaster XL. A premium diesel fuel formulated with its best additive package yet. To clean the entire fuel system for more power, less maintenance, and better fuel economy. Cenex Roadmaster XL. Fueled by innovation. Powered to perform.