Looks sketchy.
A combustion engine uses about 40% of the energy from gasoline for work and the other 60% gets dissipated as heat. If you could contain all the heat and transfer it back to work, then there would be a 150% increase in performance. A Mustang that gets 25mpg would now get 62.5mpg if the engine was 100% efficient.
Not sure how the guy is getting the additional 47.5mpg? Also he’s burning E85 which is even less efficient than just gasoline.
Agree with others - scam alert. If the mileage was as good as claimed, why doesn’t he share his secret(s), so that there can be some peer review.
Also, if it is not difficult to get 100 MPG, then manufacturers around the world would do it, and they would not give a damm about patent rights (they may not be allowed to sell it here, but big deal, China is huge and could use that car a lot more than the US).
There are thousands of excellent engineers at Japanese auto makers, and they would have easily invented a workable system long before some guy in his garage could.