Well, different guys, same "urban myth".
Did someone really force someone else to destroy a carburetor that got 45 mpg. at a land fill and have a dozer run over it?
Probably not....C'mon...a carburetor? They're like buggy whips, or innertubes.
Why is it that whenever the car mfg. are forced to get better mileage they always do?
Because the foreign manufacturers showed Detroit how it was done, and the government forced them to do it.
I don't know the dynamics like many here probably do I just question what is true what is not.
Well, you can go on youtube and see all kinds of perpetual motion machines...operating. One is a generator, belt-driven by an electric motor, which powers itself...and a drill press etc. (overunity.com)
Run your car on free hydrogen! (takes more energy to make it, than you can get out of it) Both urban myths or nutcase hoaxes.
Like I said, you can build your own fuel injection system, and program it with a laptop (Megasquirt) and turn the fuel up till it belches black smoke, or turn it down till it quits. It will not get you 100 MPG.
Once you get below the 14.x to 1 AFR (air to fuel ratio) you lose power, increase pinging and start burning holes in the pistons. That's because all the conditions are there for combustion, heat, oxygen...everything but the fuel. So it burns the aluminum. The O2 sensors in your engine attempt to keep the AFR (14:1) just above that point.
As an old sage once said trust but verify.
Well, you have your interwebbs. I didn't copy/paste all this stuff, but there are individuals experimenting with this stuff all the time and putting it online for you to see.
Two of my favorites..."Wood Gasification" a home generator running on wood....and the "GEET" engine, which will clean-burn on used motor oil, antifreeze, paint-thinner, almost any combustible liquid, and water.
Those things work, I've seen the latter hands-on and gotten to play with it.
I need first hand info,I don’t have it.