If this is the same story I read about a few months ago, the guy just used higher compression and had a WHOLE BUNCH of electronics which made the engine
use every drop of fuel efficiently.
That is one thing about all cars, is that most gas mileage is lost due to unburnt fuel. Say even 5-10% of gas for every injection into the cylendars was lost, added up that is A LOT of gas that is just completely wasted.
And in the article that I read he said that he couldn't say how he actually acheived this because even if he did, the car companies would never use it.
I don't want to sound like some conspiracy theorist, but you know all car companies are inkahoots with the oil companies.
Here's the one I read...
http://www.allfordmustangs.com/forum...7-mustang.html