[MetroMPG]

I don't know why so many commenters immediately assume that people who drive for efficiency are unable/unwilling to recognize when some techniques may be disruptive/discourteous for a given situation, and so not use them.

They seem to imagine anyone associated with the term "hypermiler" is pulsing & gliding at 35 mph down a 2 lane 55 mph highway at rush hour, ignoring the 7 mile long line of cars behind them. And drafting on the glides (the cars that manage to pass). And then taking the curves in the road at the limit of traction...