While some people believe the story of American inventor Thomas Ogle is a myth or urban legend, the reality is that Ogle designed and implemented a "vapor carburetor" that allowed a vehicle to achieve over 100 miles per gallon of gasoline in 1977—with no carbon emissions.

Sadly, Ogle's invention would never see the light of day.

After surviving an assassination attempt, Ogle subsequently died under suspicious circumstances only months later.

"Are you afraid of oil companies or the Arabs coming after you?" journalist Ron Laytner presciently asked Ogle in 1978—three year prior to his death.

"No. Not any more. I've had too much publicity. If I'd kept my invention a secret I might be worrying. But there's nothing to worry about any more," said Ogle.

The saga began on April 30, 1977, as Ogle unveiled his invention to the world in a consumption test using a 1970 Ford Galaxie, which unmodified achieved roughly 13 miles per gallon. The test saw the inventor drive a journalist 205 miles on just two gallons of gasoline—achieving over 100 miles per gallon.

The results of his road tests were so spectacular that the car was inspected for hidden fuel tanks. None were found and those who drove with Ogle confirmed that they had never stopped to refuel.

Subsequently, the amazing technology was publicized in the El Paso Times, Argosy Magazine, The Philadelphia Enquirer, and many other publications—bringing Ogle's invention nationwide attention.