Welcome to a brand-new generation of engines. The Wärtsilä 31 is setting a new standard for energy efficiency, delivering the lowest level of fuel consumption of any four-stroke engine worldwide. It also offers an unprecedented level of operational flexibility and can easily be adapted to accommodate different fuel types and operating profiles. The Wärtsilä 31 is quite simply the most fuel efficient, user friendly, versatile engine ever developed. Wärtsilä 31 engine represents also a new era for industrial design in engine development business. The innovative industrial design solution in this new engine platform covers all the mechanical and digital user interfaces creating a unique user experience that highlights the critical role of industrial design in heavy industries in the age of digitalization. The customer and end-user benefits that are included in the innovative industrial design value proposition come from the areas of safety, ease of maintenance, ease of use, better working conditions, working efficiency, reliability, modularity and enhanced engine controls, engine monitoring and communications on a ship.