[kach22i]

The first hit in a Google search (100 mpg water vapor car) on the topic provides information not covered in the film Gashole.


FARM SHOW Magazine » Farm Show - Volume 5, Issue 3, 1981
100 Mpg Carburetors: Do They Really Work?
https://www.farmshow.com/view_articles.php?a_id=822

But there are other reasons such carburetors fail. Many of them just plain don't work. The Pogue carburetor, invented by Canadian C.N. Pogue, stormed onto the U.S. and Canadian scenes in the 1930's and regularly pops back into the limelight every five or 10 years.

When the carburetor first appeared, it was said to boost gas mileage to as high as 200 mpg. Many of the reports were well-documented, which accounts for the continued interest in the unit. In all, less than 100 of the carburetors were built.

Pogue, who is still alive and admits the carburetor doesn't work, has explained the failure this way: Before 1936, most gasoline was produced by a "skimming" process which produced less gasoline per barrel of oil but vaporized easily. When oil companies moved to a chemical "cracking" process, they were able to get more gasoline but produced a product that needed higher heat to completely vaporize. A varnish would build up in his carburetor's vaporizing chamber.

Many skeptics, however, don't buy that explanation. They maintain that the real reason high-mileage carburetors never end up on cars is because they're "bought up" by big oil companies and shelved. "That's pure nonsense," counter the oil companies, pointing out that patents are public information. Anybody can copy the patent and go into production. Oil companies, they point out, couldn't possibly "buy off" millions of people.

Tom Ogle, El Paso, New Mexico, is a more recent inventor of a highly publicized high-mileage carburetor. Initial reports on the carburetor in the mid-70's claimed Ogle had achieved 100 mpg on cross country trips in a full-sized car..........