This is not the same thing as from the article, or even a gas engine, but it reminds me of this project. I never found out what became of this: <a href="http:&#x2F;&#x2F;www.nytimes.com&#x2F;2000&#x2F;09&#x2F;19&#x2F;science&#x2F;putting-a-darwinian-spin-on-the-diesel-engine.html?pagewanted=all" rel="nofollow">http:&#x2F;&#x2F;www.nytimes.com&#x2F;2000&#x2F;09&#x2F;19&#x2F;science&#x2F;putting-a-darwinia...</a><p>&gt;Dr. Senecal&#x27;s test engine consumed 15 percent less fuel than a standard engine while producing one-third as much nitric oxide and half the soot.