[PaleMelanesian]

1996 Honda Civic Sedan
1.6L manual 5-speed

Before:
city: 33-35 mpg
highway: 37-39 mpg

After:
city or on the highway: 60 mpg

Mainly in Texas.
About 10,000 miles a year.
Mods: Scangauge, partial grille block, tires 60 psi
Techniques: Pulse & Glide, engine-off coasting, Pulse & Glide, engine off at lights, extreme anticipation of conditions, route selection, Pulse & Glide, highway speeds down to 55-60, low rpm, etc...