They had no idea how much fuel the ship required or whether the necessary amount was still available.

The result is that the units require 7% less fuel.

Does one include the fuel required to raise the crop?

All the fuel required for between 40 to 60 years of operation could be in the reactor from the beginning.

Bases do not require any money or fuel to construct.

This could increase the electrical power produced per unit of fuel required by 40 percent or more.

It adds that many cannot afford the fuel required to keep even one room warm.

But more importantly, eating this way also requires less fuel and other resources, making it kind to the environment.

Some of those areas already require fuel with special characteristics but the new rules are much stricter.

In order to thrive, a fire requires fuel, oxygen, and heat.