Question

why should i conserve fuel & how

Answer 1

As we know fuel is a non renewable resource and would take very long time to restore hence we should conserve fuel.

Here are some ways to conserve fuel :
1)Maximize use of public transport.
2)Only fill fuel in your car when it’s very low. 
3)Turn off your car in slow traffic and when you wait at traffic signals.
4)Use electric powered cars  
5)Spread awareness among friends and family.

Hope this helps :D

Answer 2

Coal, oil and natural gas are fossil fuels. They have been in existence for millions of years. Many people use these fuels as an energy source. However, fossil fuels are non-renewable; if resources are depleted, they will never be available again. It is therefore important to conserve fossil fuels, using alternative sources of energy when possible...
we can conserve fuel by following ways :-
Visit a petrol pump only if your car has little or no fuel. I don't find any reason of buying fuel if your car already has sufficient fuel. This method shall directly or indirectly save valuable fuel of the respective petrol pump. You can bypass this advice in emergencies.Turn off your car in slow traffic and at traffic signals. It is estimated that you can save about 20% of fuel in this process.Minimize the use of brakes. The more frequently you apply brakes, the more fuel you spend. You can avoid braking by maintaining a constant speed of your vehicle.Encourage car pooling. This is a very effective way of saving fuel as well as reducing traffic on the roads.If possible, use electric-powered cars.Always insist on buying cars having an excellent mileage.