Fuel additives have a long and colorful history, as do various medicinal snake oils. This particular nanotechnology-driven additive may prove to be a bit different, however, since it comes to us highly recommended by a couple of knowledgeable (and seemingly disinterested) folks in the marine biz, one the manager of a charter fleet and the other a boat-crazy marketeer. At any rate, these two guys (as well as the folks at Go2 Global Yachting) claim that by contributing to and redistributing oxygen radicals in a diesel’s cylinders during combustion, and thereby accelerating the combustion process, this new diesel additive reduces fuel consumption by as much as 14 percent, particulates (soot) by as much as 40 percent, and unburned-fuel emissions (exhaust odor) by 70 percent. A product for high-usage boaters? Perhaps, since one gallon treats 4,000 gallons of diesel and shelf life is one year. Rather pricey, too. But oh, the wonders of nanotechnology.