With 90 percent of international trade transported aboard over 100,000 commercial vessels, merchant shipping is at the core of our global economy; this was acutely evident with the impact of the ship stuck in the Suez Canal in early 2021. Over the decades, ongoing innovations in vessel size, propulsion, construction materials, design specialization, and automation systems have helped to power the growth of maritime freight traffic. For marine operators in relentlessly competitive international waters, minimizing fuel consumption is a matter of economic survival. Newer reduced-sulfur fuels aimed at diminishing harmful emissions, especially when it comes to cargo-standard bunker fuel, are simply not as efficient as their predecessors. Therefore, no matter how clean the diesel or marine fuel oil may be, the real challenge that remains is how to use less of it.