Last year, Gulf Racing Fuels introduced its gulf marine product made with isobutanol. Gulf Racing Fuels is a subset of Gulf, which specializes in off-road fuels for racing, high performance engines, all-terrain vehicles, snowmobiles, marine and more. The fuel is 12.5 percent isobutanol and 87.5 percent clear non-ethanol gasoline. Gulf Racing Fuels has been working with Gevo, the renewable supplier ...
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