Northern Norway has a large fleet of small and mid-size boats for commercial operations, for example, passenger boats, car ferries and a multitude of fishing boats. These are boats that operate year around and that at regular intervals need to replace their engines. A new engine is a large investment, but with the reduced operating expenses for the D12 the investment has quickly been made profitable. The high-speed passenger boat MF Sjösprint was equipped at the end of last year with twin D12s for propulsion. The fuel consumption is now approx. 30 percent lower compared with the old engine, while at the same time performance has improved. Noise and vibrations are also significantly lower with the D12 engines. The MF Flatöy car ferry installed a D12 last May.