Webasto Thermosystems has developed a customized fuel savings calculator for North American fleets and owner/operators to help calculate how much money they waste by unnecessary idling. The calculator also will help identify which auxiliary heater will provide the best benefits and quickest payback based on fleet data entered into the calculator. Calculations are formulated in United States or Canadian currencies and measurements. Fleet operators are invited to access the calculator on Webasto's web site at www.webasto.com. It is also available through a mail-in program.