Marine industry tests show Gevo isobutanol OK up to 16.1%

In Colorado, a consortium of leading organizations from the recreational marine industry has completed more than four years of testing Gevo Inc.’s renewable isobutanol in marine engines. Thousands of hours of testing showed that isobutanol blends of up to 16.1 percent can be used in marine engines without deterioration of engine or boat performance. The tests were performed in collaboration with the National Marine Manufacturers Association, the American Boat and Yacht Council and several engine and boat manufacturers across the industry. The testing was also supported by The U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, and Argonne National Laboratory.

The consortium tested many engine technologies from several engine and boat manufacturers, and included measurements of gaseous and particulate engine exhaust emissions, combustion analysis, cold start, run ability, durability and more. No engine exhaust emissions failures, durability issues or run ability issues were experienced during the multi-year test program.