You could conserve the fuel by the following ways:- 
1.We can save fuel by maximizing the use of battery vehicles, and minimizing the use of polluting vehicles.
2.We may use CNG, instead of petrol and diesel.
3.Use of alternative fuels must be appreciated.
4.Fuels are precious and present in a limited account, so the conservation of fuels is essential. The government must make awareness.
You can conserve fuel by following methods:-
1. we should use public vehicles instead of private vehicles when not needed.
2. if you want to cover short distances, then walking is better than going on a             vehicle.
3. purchase vehicles with excellent mileage.
4.  while waiting in traffic, switch off the engine.
5. spread awareness among all.