Say goodbye to that inefficient carburetor. And say hello to a cleaner burning, more efficient propane engine that saves you up to $600 a year on fuel.* Our exclusive KOHLER Command Pro EFI engine with closed-loop electronic fuel injection now offers a propane option that's designed to work more using less fuel. To emit lower emissions than most other fuel types. And to save you cash every hour, every year. LOW OPERATING COST, HIGH PRODUCTIVITY Save up to $600 a year * with up to 25% better fuel economy** than other similarly sized carbureted engines. No carburetor - no carburetor problems. Automatically optimizes for fuel grade, fuel quality and altitude. Easy access to all routine maintenance points. BETTER PERFORMANCE More consistent performance under varying operating conditions. No choke - starts just like your car. Reduces your carbon footprint. 25% less fuel means 25% less carbon produced. EFI diagnostic software provides quick diagnosis to detect and fix problems if they occur. 3-year unlimited-hour warranty. Use our fuel savings calculator to see how much you'd save by switching to our Command PRO EFI: http://khlr.co/aLjr. Click here to learn more about our EFI technology. *Compared to a comparable carbureted propane engine under comparable loads and duty cycles. **Based on 600 hours of annual operation.