Butanol is showing promise as an alternative for chemicals as well as transportation fuel, according to this article. The Outdoor Power Equipment Institute has said tests indicate that isobutanol blends can outperform E15 in marine and small engines. "The marine group has been very supportive because of their work on testing our blendstocks with E15 and the better performance, quite frankly, that they got out of isobutanol-blended fuel," says executive Brant DeMuth of Gevo.

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