[jdmccright]

I'll agree that some of the techniques are dangerous and those are ones I do not engage in...coasting with the engine off and drafting to name a few.

Regarding #2, the ECU will feed gas if your foot is off the accelerator whether you're in our out of gear.. in both cases the engine is at idle state. But in gear, the engine is providing braking through the torque converter, so idle fuel rate is being consumed at 2000 rpms versus 750 rpms. In a manual transmission, the effect is the same only more pronounced since there is a direct connection between engine and transmission...no slipping torque converter.

Regarding #3, I find it difficult to see how my vehicle, stopped at a light and engine off, surrounded by other stopped vehicles, could cause a fatal accident. I will reiterate that I have only done so AFTER I have come to a stop. And according to my state's motor vehicle laws, it is not illegal to do so...yours may be different.

Perhaps "hypermiling" wasn't a great word to use for this topic given it's negative connotation, but will hopefully generate good, safe, and economical driving habits.