We can conserve fuel by ourself as to turn off vechile at the red light and try to minimise the use of fuel using vechile like car,scooty and bike etc. and use cycle to go to nearby places.Also as if many peoples are going to the same place then they can share vechile or use public transport. and also make other people aware of how important fuel is?So in many ways we can make a start by ourself.
We can conserve fuel in the following ways -

1) turn off your car in slow traffic and when you wait at traffic signals
2) minimize the use of brakes
3) opt for car pooling as much as possible
4) use electric powered cars