In 1933, Canadian inventor, Charles Nelson Pogue made headlines when he drove a 1932 Ford V8, 200 miles on a gallon of gas during a demonstration conducted by The Ford Motor Companies in Winnipeg, Manitoba Canada using his super-carb system.
The fact of the matter is, gasoline powered vehicles today burn only finely divided particles or droplets that are sprayed from the carburetor or fuel injectors, into the engine cylinders, not vapors.
This is a very wasteful process of converting gasoline or diesel to energy. Maybe 20-30 % efficiency at most.
It has been known and demonstrated for 60 or more years that burning gasoline vapors will give easily 5 times the mpg and near zero emissions.
The Alberta Tar Sands (mostly foreign owned) is stealing our essential supply of fresh water. Every day 2 to 4 million barrels of precious fresh water is used and rendered useless in Alberta Canada to produce the dirtiest and most toxic oil on Earth.