Exmark has expanded its 2014 commercial mower lineup to include 2 new EFI-propane wide-area walk-behind models: the Turf Tracer X-Series EFI-propane and the Turf Tracer S-Series EFI-propane. Both Turf Tracer models utilize Kohler EFI-propane powerplants with an automotive-style closed-loop Electronic Fuel Injection (EFI) system to increase fuel economy by up to 25 percent. Capable of precisely adjusting fuel mixture settings in real-time, the closed-loop EFI also delivers improved running and performance, combined with easy, no-choke starting. Both Turf Tracer models include Exmark’s patented Enhanced Control System, which increases operator comfort and productivity through improved ergonomics. The Turf Tracer X-Series EFI-propane is powered by the Kohler PCV680 engine, while the Tracer S-Series EFI-propane uses a Kohler PCV650 powerplant.