The present invention discloses a method and enabling apparatus for integrating a new fuel or fuels into an operating transportation system in a continuous, seamless manner. The method disclosed overcomes the economic risk associated with developing a new fuel when there is little or no fuel distribution infrastructure in place for the new fuel.Integrating a new fuel into an existing transportation system can be implemented with two enabling technologies. The first is an engine capable of operating seamlessly on multiple fuels. The second is a system of determining a driving strategy that makes the transition from one fuel to another seamless to the driver. A compact, high-performance gas turbine engine is an enabling apparatus of the above strategy. The system of driving strategy disclosed herein allows the operator of the vehicle or the fleet manager to minimize operational costs by estimating the best combination of fuels, fuel dispensers and driving strategies. By carrying at least one readily available fuel, the operator is free of infrastructure shortcomings for other fuels that may be less expensive or have superior emissions characteristics. The vehicle operator can therefore efficiently manage the use of on-board fuels as well as efficiently manage the driving schedule and route to achieve the lowest overall operating costs.