Fuel is fast depleting. Fuel is not water. Fuel is not a renewable source. You should never waste fuel. Try not to use a car or motor vehicles as much as possible. Don't drive short distances, bike it. Don't waste your cooking gas. Fuel Gone, and Fuel Gone forever that is.
Now, Saudi Arabia is the largest producer of Petroleum. Petroleum is not present as much as water is. When it rains, we won't get fuel. If we don't take steps to conserve fuel, we will face grave consequences.
Fuel is not renewable, as mentioned before, and should be used with great care. We must give a lot of value to it, and conserve it for our own good.