Wasnt there a guy in Tamil Nadu who claimed to have found a wonder process for fuel some years ago. Is he still alive or has he been buried by the oil companies?
In the US, people use some crazy fuels. I have heard of people going to KFC, McDonald's, etc, and then getting their used frying oil, and refining it and using it in cars. Of course, this is not legal there, but
Hybrids are also a good way to reduce fuel consumption. I think they only use fuel when starting and since most of them use regenerative braking power, we can brake to our hearts content in the cities.
I dunno if I want Mukesh-bhai controlling my diesel too