When you're stopped at the lights, the engine cuts out to reduce fuel usage and emissions.
Even the commercial airlines are getting into the act by finding ways of either cutting back their fuel usage or reducing pollution from ground equipment.
Advanced game rules include air power, supply, and fuel usage.
Since scale is a poor heat conductor, inefficient fuel usage soon becomes apparent.
The standard is intended to double the amount of renewable fuel usage by 2012.
This type of support would allow them to decrease their energy costs and reduce their fuel usage.
However the fuel usage per passenger really depends on the occupancy rate of each type.
What I'm saying is that these boys are running at nearly full speed no matter what the cost in fuel usage.
As a result most form of transport from cars to airlines are cutting down on fuel usage, thus affecting the economy.
The vessel was withdrawn due to being old and having high fuel usage.