Would Cars Run Better With Water?

Don't laugh. A fuel mixing H20 and naphtha might just work

After two years of hush-hush work with Caterpillar Inc., a small Reno (Nev.) company called A-55 LP is marketing an unusual new fuel for cars, trucks, buses, and diesel generators. It promises to reduce pollution and might also improve mileage. That's mainly because it's diluted with 30% to 55% water. No joke: water. The rest is primarily naphtha, a derivative of crude oil that's typically cheaper than gasoline or diesel fuel, because it needs less refining.

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