Mercury is the world's leading manufacturer of marine propulsion systems. Since the very beginning, Mercury has set the standards for the industry. When pending outboard emission standards challenged the industry, mercury took the lead in redesigning its product to reduce emissions and to not only meet, but also exceed the new standards. The OptiMax outboard engine concept was created to deliver exceptional performance from a two-stroke outboard with a completely new technology. With an average of 45 percent better fuel economy and smooth, smokeless, misfire-free operation, the OptiMax models were - and are - the benchmark for new-technology two-stroke outboards.