Pulse and Glide on Highway

home I  harness the law of motion I save your money I  pulse & glide
  I save your money I pays for itself  I  national security I  price &   I  compare our price I Q&A
 

This is a driving technique used by a few NASCAR drivers  to minimize their vehicle's weight using the second law of motion as its "earthly" best but works on any car especially when driving on highways  as it would be not convenient -but possible- to use this technique in heavy traffic, when the driver has ultimate fuel economy and fuel weight in mind.

How does it work?

Pulse and glide works like this (let's say you want to average 65MPH):

First accelerate smoothly (keeping the Moment-O-Meter's light on green**) to 70MPH, that's the PULSE 

Second coast in neutral to 55MPH, that's the GLIDE.

Your average will be 65MPH.  Pulse and glide is significantly more efficient than driving along maintaining a steady 65MPH. ** The green will give minimum fuel consumption during acceleration.

Why does it work?

The secret is in the GLIDE: While gliding, you get the maximum MPG because the engine will rotate only as if you were idling @800 to 1,100 RPM which is only a fraction of the RPM needed to run @ 65MPH.  But gliding allows using the car's momentum instead of fuel and your car will still cover a significant distance without consuming more fuel than when idling. 

RPM= Rotation Per Minute

MPG= Miles Per gallon