Understanding On Board Lubricants – examining impact on performance and the environment, too. Performance and sustainability—two words with growing importance in the marine industry, especially when it comes to lubricants. Performance is a must-have for a wide range of components to function properly aboard any ship, while regulatory vessel oversight and greater corporate understanding is providing an opportunity for enhanced sustainability. From bow thrusters to stern tubes, onboard lubricants are seeing the convergence of performance and sustainability.