Wacker Neuson rollers are often considered the standard in the construction industry. They have been designed for prime production as well as for their performance and durability. They are powered by the exclusive WM 80 engine, designed and built by Wacker Neuson. With its catalytic converter, the emissions rest well below the air emission standards. These products are the most environmentally friendly gasoline rammer engines in the market. Automatic shutoff feature will shut down the engine if left idling for 10 minutes, which gives it additional fuel and emission savings.