An apparatus and method for automatic power adjustment of an optical network system are provided by the present invention. When an accelerator operation causes a mode shift request and a gear shift request at substantially the same time, vehicle information including at least one of the vehicle speed and the engine load is used to determine the sequence of the shifts based on the competing interests of shock control and responsiveness. When a match is detected, a predetermined operation is performed. Individual slides or groups of slides are supported on flat heating stations for heating to individual temperatures. The second public key is certified with said first secret key to produce a second certificate. While the present invention has many applications, one preferred embodiment targets fuel management within the context of rentallease vehicles and the like.