Accelerate to about 3-4 miles per hour faster than your desired speed. Release the gas pedal. When the instant FE gauge is pinned at 100, slowly depress the gas pedal until you get 3 bars of boost, then hold the gas pedal in that position.

Your FE depends on many things. The a/c takes 10mpg right off the top. Other factors include cold temperatures, short trips and rain. My best tip is to drive as if you have no brakes (coast to stops whenever safe to do so).

Good luck.