Quote Originally Posted by Rase View Post
why wouldn't they just patent it, build a car with it, and sell it? They'd make tons of money while helping the environment and saving everyone money on gas. This just sounds like the "gas pills" and other conspiracy theories that have been around for as long as cars have been.
Well, the counter-conspiracy is that Big Auto is subsidized by Big Oil, and thus will not make cars that are too fuel efficient, so they can get their subsidies.

Quote Originally Posted by udsuna View Post
One of the guys where I lived did just that. Designed an engine that used some complicated mix of water in the fuel injection. Patented it. Exon Mobile bought the patent for 2.5 million dollars.
...and I guarantee you that it will never see the road now. Because Big Oil does not want something more fuel efficient on the roads, as it will cut into their profits.